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27.Before they came home,I had finished
28.After Jack had left the office,I arrived
29.Before jonh went to bed,he had finished the report
30.After Steven had saved enough money, he bought a new motorbike
1. He had dinner before he went out to play with his friend.
After he had had dinner, he went out to play with his friend.
2. Mary finished her homework before we arrived.
When we arrived, Mary had finished her homework
3. After he had had a bath, he ate his dinner.
Before he ate his dinner, he had had a bath
4. Daisy went home before I arrived.
When I arrived, Daisy had gone home
Bài này chỉ cần xác định rõ hành động nào xảy ra trước ta đưa vào thì quá khứ hoàn thành, còn cái hành động xảy ra sau đưa vào thì quá khứ đơn là đc
Change into passive voice
1. You must hand in your report before the end of this month
=> Your report had to hand before the end of this month.
2. I had just finished the job when the factory closed
=> The job had been just finished when the factory closed.
3. No one has opened that box for the past hundred years
=> That box has not been opened for the past hundred years
4. Are you going to mail these letters soon?
=> Are these letters going to be mailed soon ?
5. He should have finished the report yesterday
=> The report yesterday should have been finished yesterday.
1. The last bus left before Carol got to the bus stop. HAD
=> When Carol got to...the bus stop, the last bus had left
2. I made an appointment, and then I went to see the dentist. AFTER
=> I went to..see the dentist, I had..made an appointment.
3. The workmen finished, and then the new owners moved in. WHEN
=> The workmen..had finished, the new owners.moved in.
4. Their last holiday was in Nha Trang. TO
=> They..went to Nha Trang for...their last holiday.
5. The burglar escaped before the police arrived. HAD
=> When the police.arrived, the burglar had ..escaped.
6. Laura walked to the office in heavy rain. AS
=> It was.raining heavily when Laura..walked to the office.
7. I haven't been to my home town for two years. LAST
=> I....last went to my home town 2 years ago..two years ago.
8. I recognized her at once. SEEN
=> At once I knew...I had seen her.before.
9. She went to the capital city for the first time. NEVER.
=> She had...never been to the capital city.before.
10. The police arrived too late, so the robbers got away. ALREADY
=> By the time the police...arrived, the robber had got away.
11. How long have you had your motobike? BUY
=> When..did you buy your..motorbike?
12. The phone call interrupted my breakfast. WHEN
=> I was...having breakfast when the phone call..rang
13. I thought the house seemed familiar. SEEN
=> I thought...I had seen the house .before
. 14. I missed the bus so I took a taxi. HAD => I took..a taxi because I had missed.the bus
My homework had been finished before I went to bed.
I had finished my homework before I went to bed.
→ My homework had been finished before I went to bed.