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1. These newpapers have jut been bought by Nina.
2. Computer science has been studied by my brother since June.
3. My teeth had been brushed before I went to bed last night.
4. The report had not been finished before they had a test.
5. A song wasn't being sung by Nina when you came.
6. Their house was being decorated when you phoned.
7. The English homework has been done by me.
8. Banana leaves haven't been used instead of paper.
9. Is the bike ridden by Nina every evening?
10. Sam's exercise hadn't been done by noon.
11. After the house had been cleaned, I went to school.
12. Fiona wasn't invited to John's birthday party last night.
13. He was given an apple by Nga yesterday.
An apple was given to him by Nga yesterday.
14. I was bought new clothes by my father on my birthday.
New clothes were bought for me by my father on my birthday.
15. John's wife was bought a coat yesterday.
A coat was bought for John's wife yesterday.
16. He was sent money by his mother last week.
Money was sent to him by his mother last week.
17. German is being studied by her son right now.
18. Tim's computer is being used by Patrick.
19. The dishes were being washed by us when you called.
20. The employers were being called by Tom at 9 o'clock yesterday morning.
Bị động HTHT have/has been V3/ed
Bị động QKĐ was/were V3/ed
Bị động HTTD is/am/are being V3/ed
Bị động QKTD was/were being V3/ed