16. We are always advised to study harder on the second term by our teacher.

(câu chủ động chia hiện tại đơn => câu bị động thì hiện tại đơn: S + tobe + V_ed/V cột 3)

17. Modern Christian theology has been influenced by his writings.

(câu chủ động chia thì HTHT => câu bị động thì HTHT: S + have/has been + V_ed/V cột 3; chủ ngữ số ít => dùng "has")

18. She was given the book ''The fault in our start '' as a birthday gift.

(câu chủ động chia QKĐ => câu bị động thì quá khứ đơn: S + was/were + V_ed/V cột 3)

20. We are going to have the kitchen decorated next month. 

(have sth done: có cái gì được làm bởi ai đó)

21. I had had my car checked by a mechanic before I set off on my holiday.

(hành động sửa xe diễn ra trước hành động còn lại ở quá khứ => quá khứ hoàn thành; have sth done)

22. I had my laptop fixed by a technician. 

23. The prisoner is thought to have escaped climbing over the wall. 

(câu bị động kép: V1 hiện tại đơn, V2 quá khứ đơn => to have + V_ed/V cột 3)

24. Has the most valuable painting in the national museum been stolen by thieves?

25. I used to be taken to the zoo by my father when he had free time.

26. My was deep impressed by the performance of that young girl.

27. Because of being lost, we stopped to asked a policeman for directions.

28. He will get good grades if his spelling is improved.

29. The employees would be satisfied with a full bonus.

30. Their children aren't allowed to stay up late.

31. Unless you tell anyone, we let you into the secret.

32. It can't be denied that she has a beautiful voice.

33. Our dog bit the postman.

34. He likes to be called "professor".

35. The onion needs to be peeled and sliced. 

36. They are being made to study hard by their teacher.

37. The police took the wounded persons to hospital. 

38. Mary said an event about skincare would be held the following month. 

39. It has been suggested that bright children take their exams early.

40. Drugs are being thought to be very dangerous.