35.My father bought me a video recorder
-> A video recorder was bough by my father
36.The police didn’t interview the witness
-> The witness wasn't interview by the police
37. He hasn’t seen the younger son for three weeks
->the younger son hasn’t been seen for three weeks
40.The scientists are carrying out an important experiment
->an important experiment is being carried out by the scientists
38.People say that his father is French
->his father is said to be French. I’ll have the fence removed
39.I’ll have someone remove the fence
->The fence have remove done by someone
Ghi nhớ
bị động của cấu trúc have sb do sth là have sth done by sb
Câu bị đông thì quá khứ đơn
S+WAS/WERE+P2
THÌ HTHT
S+HAVE/HAS+BEEN+P2
THÌ TLĐ
S+WILL+BE+P2