Thì quá khứ hoàn thành – Past Perfect dùng để diễn tả một hành động đã xảy ra và hoàn tất trước một hành động khác trong quá khứ.
Nói cách khác, đây là thì dùng để nhấn mạnh thứ tự thời gian của hai sự kiện trong quá khứ:
→ Hành động 1 (xảy ra trước) → Thì quá khứ hoàn thành
→ Hành động 2 (xảy ra sau) → Thì quá khứ đơn
Ví dụ thì quá khứ hoàn thành:
I had finished my homework before I went to bed. → Tôi đã làm xong bài tập trước khi tôi đi ngủ.
She had left when I arrived. → Cô ấy đã rời đi khi tôi đến.
Đây là bài viết Thì quá khứ hoàn thành trong series 35 bài học ngữ pháp tiếng Anh chủ chốt. Hoàn tất series này, bạn sẽ có nền tảng ngữ pháp vững vàng.
List dưới đây là lộ trình học ngữ pháp chuẩn từ con số 0 : Học đúng thứ tự, bám sát từng bài để củng cố kiến thức bạn nhé:
Chặng 1:
Chặng 2:
Chặng 3:
Chặng 4:
Chặng 5:
Chặng 6:
Chặng 7:
Thì quá khứ hoàn thành A – Z
Nếu bạn thường bị “ngợp” khi học tiếng Anh vì quá nhiều kiến thức, bạn đang ở đúng chỗ. Mỗi bài học của blog Kho tiếng Anh luôn ngắn gọn, đi cùng ví dụ dễ hiểu. Học tốt nhé!
Ngữ cảnh sử dụng thì quá khứ hoàn thành
NGỮ CẢNH
GIẢI THÍCH
VÍ DỤ
Mô tả một hành động xảy ra trước một sự kiện khác trong quá khứ
Nói về điều gì đó đã xảy ra và hoàn tất trước một thời điểm hoặc sự kiện khác ở quá khứ . Hay đi với các từ như:
just, already…( thường đứng giữa “had ” và V3) .
when, as soon as, by the time, after…
always, sometimes, never, before, by + time.
The chef had just prepared the sauce when the guests arrived a few minutes later. By the time the guests came in, the catering team had already prepared all the dishes.
His family were richer than they had ever been before.
Ai đó kể lại sự kiện trong quá khứ (reported events)
Thể hiện rõ chuyện được kể đã xảy ra trước thời điểm người nói nhắc đến .
Khi ai đó kể lại một chuyện đã xảy ra trong quá khứ, câu nói của họ thường có hai lớp thời gian :
Thời điểm người đó kể lại chuyện → quá khứ (past simple)
Sự kiện mà họ kể → đã xảy ra trước thời điểm họ kể (past perfect)
He told me he had finished the project. My sister said she had lost her passport the day before.
The applicant explained that he had worked in Japan for five years before returning home.
Các kỳ vọng không thành
Nói về những hy vọng trong quá khứ , những điều đã mong chờ , nhưng thực tế không xảy ra.
The coach had expected his team would reach the finals, but they lost in the first round.
Emma had hoped to travel to Korea that summer, but her visa application was rejected.
Nhớ bookmark lại và chia sẻ bài học này vào trang cá nhân để ôn thi khi cần nghen ❤️
Công thức chia động từ trong thì quá khứ hoàn thành
Công thức chia động từ thì quá khứ hoàn thành
Khẳng định
S + had + V3/ed ( + C )
The old photographer had already taken the pictures
The group of tourists had explored that cave during their previous trip.
Phủ định
S + had + not + V3/ed (+ C )
The woman had not booked her flight yet
The baker had not prepared enough dough for the morning rush.
Nghi vấn
(Yes/No question)
Had + S + V3/ed (+ C) ?
Yes, S + had.
No, S + had not (hadn’t)
Had the art collector sold the painting yet?
→ Yes, he had. → No, he hadn’t.
Wh-question
Wh-question + had + S + V3/ed (+ C) ?
(Wh-question = what, where, when, who, why, which, whose, how )
Which book had your friend finished before the exam?→ She had finished the history book.
Chú thích công thức chia động từ thì quá khứ hoàn thành:
S : Subject (Chủ ngữ)
V3/ed : Past participle (Quá khứ phân từ của động từ, bao gồm động từ bất quy tắc và có quy tắc)
C : Complement (Thành phần bổ nghĩa)
12 thì tiếng Anh
Chi tiết về V3 – Past participle trong thì quá khứ hoàn thành
Nếu thì quá khứ đơn dùng V2 để kể chuyện trong quá khứ, thì quá khứ hoàn thành dùng V3 để cho thấy câu chuyện đó ảnh hưởng tới bây giờ.
Bạn có thể hiểu đơn giản thế này: thì quá khứ hoàn thành là “quá khứ nhưng vẫn liên quan đến quá khứ”. Và V3 chính là dạng động từ dùng để nói điều đó. Vì vậy, muốn áp dụng đúng công thức ở trên, bạn cần nắm rõ cách tạo V3.
V3 gồm hai loại:
Động từ có quy tắc (Regular Verbs) → thêm –ed vào phía sau. Ví dụ:
Động từ bất quy tắc (Irregular Verbs) → học thuộc lòng. Ví dụ: take → taken, go → gone…
Bảng động từ có quy tắc
add
deliver
enjoy
like
open
start
agree
describe
explain
listen
order
stay
answer
die
fill
live
paint
stop
ask
divide
finish
look
park
study
arrive
drop
follow
love
pass
talk
believe
earn
form
laugh
play
thank
behave
end
guess
manage
plan
travel
call
enjoy
happen
mark
plant
try
change
explain
hate
marry
pour
touch
clean
fill
help
match
pull
use
close
finish
hope
miss
rain
visit
collect
follow
imagine
move
reach
wait
compare
form
improve
need
remember
walk
cook
guess
include
notice
repeat
want
copy
happen
invite
open
return
wash
count
hate
join
order
search
watch
cry
help
jump
paint
seem
work
dance
hope
kill
park
shout
worry
decide
imagine
learn
pass
smile
wish
Ghi nhớ về bảng động từ có quy tắc
Động từ kết thúc bằng –e → chỉ thêm [-d] . Ví dụ: like → liked, love → loved, move → moved
Động từ kết thúc bằng phụ âm + y → [ đổi y thành i + ed] . Ví dụ: study → studied, try → tried, carry → carried
Động từ một âm tiết, kết thúc bằng consonant–vowel–consonant → [ gấp đôi phụ âm cuối + ed] . Ví dụ: stop → stopped, plan → planned, chat → chatted
Bảng động từ bất quy tắc
V1
V2
V3
Nghĩa
Ví dụ
awake
awoke
awoken
đánh thức, thức
I awoke early this morning.
be (am/is/are)
was/were
been
thì, là, bị, ở
I was at school yesterday.
beat
beat
beaten/ beat
đánh, đập, đánh bại
Our team beat their team 2–1.
befall
befell
befallen
xảy đến
A big storm befell the town last night.
behold
beheld
beheld
ngắm nhìn
We beheld a beautiful rainbow after the rain.
beset
beset
beset
bao quanh
The village was beset by floods.
bet
bet/ betted
bet/ betted
I bet you can’t run faster than me.
bide
abode/ abided
abode/ abided
lưu trú, lưu lại
We decided to bide here until the rain stopped.
bind
bound
bound
buộc, trói
bleed
bled
bled
chảy máu
break
broke
broken
đập vỡ
bring
brought
brought
mang đến
browbeat
browbeat
browbeaten/ browbeat
hăm dọa
burn
burnt/ burned
burnt/ burned
đốt, cháy
bust
busted/ bust
busted/ bust
làm bể, làm vỡ
cast
cast
cast
ném, tung
chide
chid/ chided
chid/ chidden/ chided
mắng, chửi
cleave
clove/ cleft/ cleaved
cloven/ cleft/ cleaved
chẻ, tách hai
cling
clung
clung
come
came
come
đến, đi đến
creep
crept
crept
bò, trườn, lẻn
crow
crew/
crewed
crowed
gáy (gà)
daydream
daydreamed/ daydreamt
daydreamed/ daydreamt
dig
dug
dug
đào
dive
dove/ dived
dived
lặn, lao xuống
draw
drew
drawn
vẽ, kéo
drink
drank
drunk
uống
dwell
dwelt
dwelt
trú ngụ, ở
fall
fell
fallen
ngã, rơi
feel
felt
felt
cảm thấy
find
found
found
tìm thấy, thấy
flee
fled
fled
chạy trốn
fly
flew
flown
bay
forbid
forbade/ forbad
forbidden
cấm, cấm đoán
forego (also
forgo)
forewent
foregone
bỏ, kiêng
foretell
foretold
foretold
đoán trước
forgive
forgave
forgiven
tha thứ
freeze
froze
frozen
(làm) đông lại
get
got
got/ gotten
có được
gird
girt/ girded
girt/ girded
đeo vào
go
went
gone
đi
grow
grew
grown
mọc, trồng
handwrite
handwrote
handwritten
viết tay
have
had
had
có
heave
hove/ heaved
hove/ heaved
trục lên
hide
hid
hidden
giấu, trốn, nấp
hurt
hurt
hurt
làm đau
inlay
inlaid
inlaid
cẩn, khảm
inset
inset
inset
dát, ghép
interweave
interwove/ interweaved
interwoven/ interweaved
trộn lẫn, xen lẫn
jerry-build
jerry-built
jerry-built
kneel
knelt/ kneeled
knelt/ kneeled
quỳ
know
knew
known
biết, quen biết
lead
led
led
leap
leapt
leapt
nhảy, nhảy qua
leave
left
left
ra đi, để lại
let
let
let
light
lit/ lighted
lit/ lighted
thắp sáng
lose
lost
lost
làm mất, mất
mean
meant
meant
có nghĩa là
miscast
miscast
miscast
misdo
misdid
misdone
phạm lỗi
mislay
mislaid
mislaid
để lạc mất
mislearn
mislearned/ mislearnt
mislearned/ mislearnt
học nhầm
misset
misset
misset
đặt sai chỗ
misspell
misspelt
misspelt
viết sai chính tả
mistake
mistook
mistaken
misunderstand
misunderstood
misunderstood
hiểu lầm
mow
mowed
mown/ mowed
cắt cỏ
outbid
outbid
outbid
trả hơn giá
outdo
outdid
outdone
làm giỏi hơn
outdrink
outdrank
outdrunk
uống quá chén
outfight
outfought
outfought
đánh giỏi hơn
outgrow
outgrew
outgrown
lớn nhanh hơn
outlie
outlied
outlied
nói dối
outride
outrode
outridden
outsell
outsold
outsold
bán nhanh hơn
outshoot
outshot
outshot
bắn giỏi hơn, nảy mầm, mọc
outsit
outsat
outsat
ngồi lâu hơn
outsmell
outsmelled/ outsmelt
outsmelled/ outsmelt
khám phá, đánh hơi, sặc mùi
outspeed
outsped
outsped
đi/chạy nhanh hơn
outswear
outswore
outsworn
outthink
outthought
outthought
outwrite
outwrote
outwritten
viết nhanh hơn
overbreed
overbred
overbred
nuôi quá nhiều
overbuy
overbought
overbought
mua quá nhiều
overdo
overdid
overdone
overdrink
overdrank
overdrunk
uống quá nhiều
overfeed
overfed
overfed
cho ăn quá mức
overhang
overhung
overhung
nhô lên trên, treo lơ lửng
overlay
overlaid
overlaid
phủ lên
override
overrode
overridden
lạm quyền
oversee
oversaw
overseen
trông nom
oversew
oversewed
oversewn/ oversewed
may nối vắt
oversleep
overslept
overslept
ngủ quên
overspend
overspent
overspent
tiêu quá lố
overtake
overtook
overtaken
đuổi bắt kịp
overthrow
overthrew
overthrown
lật đổ
overwrite
overwrote
overwritten
viết dài quá, viết đè lên
pay
paid
paid
trả (tiền)
prebuild
prebuilt
prebuilt
làm nhà tiền chế
premake
premade
premade
làm trước
presell
presold
presold
bán trước thời gian rao báo
preshrink
preshrank
preshrunk
ngâm cho vải co trước khi may
prove
proved
proven/ proved
chứng minh
quick-freeze
quick-froze
quick-frozen
kết đông nhanh
quit
quit/ quitted
quit/ quitted
bỏ
reawake
reawoke
reawaken
rebind
rebound
rebound
buộc lại, đóng lại
rebuild
rebuilt
rebuilt
xây dựng lại
recut
recut
recut
cắt lại, băm
redo
redid
redone
làm lại
refit
refitted/ refit
refitted/ refit
luồn, xỏ
regrow
regrew
regrown
trồng lại
rehear
reheard
reheard
relay
relaid
relaid
đặt lại
relearn
relearned/ relearnt
relearned/ relearnt
học lại
remake
remade
remade
repay
repaid
repaid
hoàn tiền lại
rerun
reran
rerun
resend
resent
resent
gửi lại
resew
resewed
resewn/ resewed
may/khâu lại
reteach
retaught
retaught
dạy lại
retell
retold
retold
kể lại
retread
retread
retread
lại giẫm/đạp lên
rewake
rewoke/ rewaked
rewaken/ rewaked
đánh thức lại
reweave
rewove/ reweaved
rewoven/ reweaved
dệt lại
rewet
rewet/ rewetted
rewet/ rewetted
làm ướt lại
rewind
rewound
rewound
rid
rid
rid
giải thoát
ring
rang
rung
rung chuông
roughcast
roughcast
roughcast
sand-cast
sand-cast
sand-cast
say
said
said
nói
seek
sought
sought
tìm kiếm
send
sent
sent
gửi
sew
sewed
sewn/ sewed
may
shave
shaved
shaved/ shaven
cạo (râu, mặt)
shed
shed
shed
rơi, rụng
shit
shit/ shat/ shitted
shit/shat/shitted
đại tiện
show
showed
shown/ showed
cho xem
shut
shut
shut
đóng lại
sing
sang
sung
ca hát
sit
sat
sat
ngồi
sleep
slept
slept
ngủ
sling
slung
slung
ném mạnh
slit
slit
slit
rạch, khứa
smite
smote
smitten
đập mạnh
speak
spoke
spoken
nói
spell
spelt/ spelled
spelt/ spelled
đánh vần
spill
spilt/ spilled
spilt/ spilled
tràn, đổ ra
spoil
spoilt/ spoiled
spoilt/ spoiled
làm hỏng
stand
stood
stood
đứng
stick
stuck
stuck
ghim vào, đính
stink
stunk/stank
stunk
bốc mùi hôi
strike
struck
struck
đánh đập
sunburn
sunburned/ sunburnt
sunburned/ sunburnt
cháy nắng
sweat
sweat/ sweated
sweat/ sweated
đổ mồ hôi
swell
swelled
swollen/ swelled
phồng, sưng
swing
swung
swung
đong đưa
teach
taught
taught
dạy, giảng dạy
telecast
telecast
telecast
phát đi bằng truyền hình
think
thought
thought
suy nghĩ
thrust
thrust
thrust
thọc, nhấn
typewrite
typewrote
typewritten
đánh máy
unbind
unbound
unbound
mở, tháo ra
undercut
undercut
undercut
ra giá rẻ hơn
undergo
underwent
undergone
kinh qua
understand
understood
understood
hiểu
underwrite
underwrote
underwritten
bảo hiểm
unfreeze
unfroze
unfrozen
làm tan đông
unhide
unhid
unhidden
unspin
unspun
unspun
quay ngược
uphold
upheld
upheld
ủng hộ
wake
woke/ waked
woken/ waked
thức giấc
wed
wed/ wedded
wed/ wedded
kết hôn
wet
wet/ wetted
wet/ wetted
làm ướt
wind
wound
wound
quấn
withhold
withheld
withheld
từ khước
work
worked
worked
write
wrote
written
viết
Để kiến thức thì quá khứ hoàn thành ở lại lâu hơn, bạn cùng thực hành bài tập với Kho tiếng Anh nhé:
Ghi nhớ nhanh khi làm bài tập thì quá khứ hoàn thành:
Chỉ dùng khi có 2 hành động quá khứ.
Cái xảy ra TRƯỚC → had + V3
Cái xảy ra SAU → V2/ed.
Gặp “by the time ” là đóng khung luôn: By the time + V2, … had + V3 .
Bài tập thì quá khứ hoàn thành
*Chọn đáp án đúng thì quá khứ hoàn thành
The archive manager couldn’t open the safe because someone ___ the password.
A had changed · B changed · C has changed · D was changing
By the time the old ferry reached the harbor, the storm ___ across the entire coast.
A spread · B has spread · C had spread · D spreads
The young sculptor was frustrated because her clay ___ overnight.
A hardened · B hardens · C has hardened · D had hardened
When the rescue team arrived, the hikers ___ their last signal flare.
A used · B use · C had already used · D have used
The museum guide explained that the ancient monument ___ centuries earlier.
A collapsed · B collapses · C has collapsed · D had collapsed
Before the exam committee met, the head examiner ___ all the files.
A reviewed · B had reviewed · C has reviewed · D reviews
The violinist panicked because she ___ her solo part before rehearsal.
A hadn’t memorized · B didn’t memorize · C doesn’t memorize · D hasn’t memorized
The software team discovered bugs because the previous developer ___ the code properly.
A hasn’t tested · B didn’t test · C hadn’t tested · D doesn’t test
The historian said the royal family ___ the castle long before it became a museum.
A has abandoned · B abandoned · C had abandoned · D abandons
The art critic was surprised because the painter ___ such a realistic portrait before.
A didn’t create · B had never created · C has never created · D never created
By the time the train operator arrived, the maintenance crew ___ the engine.
A repairs · B repaired · C has repaired · D had repaired
The gardener realized the rare tree ___ after the frost.
A dies · B died · C has died · D had died
The lecturer said the chemistry team ___ that experiment many times before the accident.
A had performed · B performed · C performs · D has performed
After the exhibition ended, the organizers discovered visitors ___ with the labels.
A tampered · B had tampered · C tampers · D has tampered
By the time the novelist signed her contract, she ___ dozens of drafts.
A wrote · B writes · C had written · D has written
The conductor complained that the sound engineers ___ the cables incorrectly.
A arranged · B had arranged · C arrange · D has arranged
The project manager felt relieved because the interns ___ all the data earlier.
A has entered · B entered · C had entered · D enter
The professor said the ancient tribe ___ that language long before modern records.
A spoke · B had spoken · C speaks · D has spoken
(Bài tập Thì quá khứ hoàn thành)
*Chia động từ thì quá khứ hoàn thành
When the mountain guides arrived, the lost backpackers ___ (use) all their food.
The librarian looked upset because someone ___ (tear) several pages from the rare book.
By the time the antique dealer opened the shop, a collector ___ already ___ (buy) the vase.
The young composer was shocked when he realized he ___ never ___ (hear) that melody before.
The chef couldn’t finish the dish because her assistant ___ (forget) the main ingredient.
The historians confirmed that the ancient tribe ___ (settle) in the valley long before others.
When the emergency crew reached the barn, the fire ___ already ___ (reach) the roof.
The old filmmaker said he ___ (lose) all his early recordings during the flood.
After the rehearsal ended, the choir members discovered someone ___ (move) all the sheet music.
The gardener felt relieved because the rare orchid ___ finally ___ (bloom) after many attempts.
Before the inspectors arrived, the factory workers ___ (complete) most of the tasks.
The novelist complained that the editor ___ (change) several chapters without notice.
By the time the astronomy club met, the president ___ already ___ (explain) the new telescope rules.
The violin teacher realized her students ___ never ___ (practice) the duet together.
When the archaeologists returned to the site, heavy rain ___ (wash) away the footprints.
The museum director was surprised because the sculpture ___ (crack) despite perfect storage.
The wildlife photographer felt disappointed because the bird ___ (fly) away before sunrise.
Before the guests arrived, the event organizers ___ already ___ (prepare) all decorations. (Thì quá khứ hoàn thành)
(Bài tập Thì quá khứ hoàn thành)
*Tìm lỗi sai thì quá khứ hoàn thành
The museum guide had known the visitors from France last year.
When the art critics arrived, the sculptor finished the statue she had worked on.
The research team discovered that the glacier had melt during the storm.
By the time the theatre opened, the actors had rehearsed on stage last night only.
The elderly writer said he had wrote twelve novels before retiring.
After the choir performance ended, the conductor realized someone had took his folder.
Before the investors came, the engineering team built a full prototype they had promised.
The chef complained that the seafood had spoiled yesterday morning.
When the hikers returned to camp, they noticed the wind had blow the tent away.
The biology professor explained she had knew about the virus years before it spread.
By the time the guests arrived, the hotel staff prepared all the rooms.
The orchestra members were upset because the violinist had broke the new bow.
The historian wrote that the ancient kingdom had existed only in the past century.
After the conference ended, the coordinator found that several participants had left early yesterday.
When the rescue team reached the cabin, they realized the storm had damaged it for hours.
Before the painter exhibited his work, he had finish restoring the final canvas.
The old librarian admitted she had lost the archive last week.
The astronomer was surprised because the meteor had appeared last night suddenly. (Thì quá khứ hoàn thành)
(Bài tập Thì quá khứ hoàn thành)
***Đáp án bài tập thì quá khứ hoàn thành
*Chọn đáp án đúng thì quá khứ hoàn thành
The archive manager couldn’t open the safe because someone had changed the password.
By the time the old ferry reached the harbor, the storm had spread across the entire coast.
The young sculptor was frustrated because her clay had hardened overnight.
When the rescue team arrived, the hikers had already used their last signal flare.
The museum guide explained that the ancient monument had collapsed centuries earlier.
Before the exam committee met, the head examiner had reviewed all the files.
The violinist panicked because she hadn’t memorized her solo part before rehearsal.
The software team discovered bugs because the previous developer had tested the code properly.
The historian said the royal family had abandoned the castle long before it became a museum.
The art critic was surprised because the painter had never created such a realistic portrait before.
By the time the train operator arrived, the maintenance crew had repaired the engine.
The gardener realized the rare tree had died after the frost.
The lecturer said the chemistry team had performed that experiment many times before the accident.
After the exhibition ended, the organizers discovered visitors had tampered with the labels.
By the time the novelist signed her contract, she had written dozens of drafts.
The conductor complained that the sound engineers had arranged the cables incorrectly.
The project manager felt relieved because the interns had entered all the data earlier.
The professor said the ancient tribe had spoken that language long before modern records. (Thì quá khứ hoàn thành)
(Bài tập Thì quá khứ hoàn thành)
*Chia động từ thì quá khứ hoàn thành
When the mountain guides arrived, the lost backpackers had used all their food.
The librarian looked upset because someone had torn several pages from the rare book.
By the time the antique dealer opened the shop, a collector had already bought the vase.
The young composer was shocked when he realized he had never heard that melody before.
The chef couldn’t finish the dish because her assistant had forgotten the main ingredient.
The historians confirmed that the ancient tribe had settled in the valley long before others.
When the emergency crew reached the barn, the fire had already reached the roof.
The old filmmaker said he had lost all his early recordings during the flood.
After the rehearsal ended, the choir members discovered someone had moved all the sheet music.
The gardener felt relieved because the rare orchid had finally bloomed after many attempts.
Before the inspectors arrived, the factory workers had completed most of the tasks.
The novelist complained that the editor had changed several chapters without notice.
By the time the astronomy club met, the president had already explained the new telescope rules.
The violin teacher realized her students had never practiced the duet together.
When the archaeologists returned to the site, heavy rain had washed away the footprints.
The museum director was surprised because the sculpture had cracked despite perfect storage.
The wildlife photographer felt disappointed because the bird had flown away before sunrise.
Before the guests arrived, the event organizers had already prepared all decorations. (Thì quá khứ hoàn thành)
(Bài tập Thì quá khứ hoàn thành)
*Tìm lỗi sai thì quá khứ hoàn thành
The museum guide knew the visitors from France last year.
When the art critics arrived, the sculptor had finished the statue she had worked on.
The research team discovered that the glacier had melted during the storm.
By the time the theatre opened, the actors had rehearsed on stage. (“last night” sai vì dùng past perfect)
The elderly writer said he had written twelve novels before retiring.
After the choir performance ended, the conductor realized someone had taken his folder.
Before the investors came, the engineering team had built a full prototype they had promised.
The chef complained that the seafood had spoiled (yesterday morning sai vì dùng past perfect).
When the hikers returned to camp, they noticed the wind had blown the tent away.
The biology professor explained she had known about the virus years before it spread.
By the time the guests arrived, the hotel staff had prepared all the rooms.
The orchestra members were upset because the violinist had broken the new bow.
The historian wrote that the ancient kingdom had existed (không lỗi).
After the conference ended, the coordinator found that several participants had left early. (“yesterday” sai với past perfect)
When the rescue team reached the cabin, they realized the storm had been damaging it for hours.
Before the painter exhibited his work, he had finished restoring the final canvas.
The old librarian admitted she lost the archive last week. (thời điểm rõ → simple past)
The astronomer was surprised because the meteor appeared last night. (thời điểm rõ → simple past)
(Bài tập Thì quá khứ hoàn thành)