31. The song has been played for 2 hours. 

(Viết lại câu từ thì quá khứ đơn sang thì hiện tại hoàn thành, dạng bị động: S + have/has + been + P2 + for + khoảng thời gian)

33. I used to be taken to the zoo by my parents when I was young.

(Câu bị động với used to: S + used to + be + P2 + by O + thời gian)

34. We saw many soldiers and tanks that were moving to the front.

(đùng đại từ quan hệ "that" thay thế cho chủ ngữ hỗn hợp người + vật: S + V + that + S + V)

35. In the middle of the village there is a well from which villagers take water to drink.

(from +  which + S + V)

36. This machine is used to bake bread. 

(câu bị động thì hiện tại đơn: S + am/is/are + P2)

37. I haven't had my eyes tested for 2 months. 

(have sth + P2: có cái gì được làm bởi ai)

38. He introduced me to his students, most of whom were from abroad.

31. The song has played for 2 hours.

33. I used to be taken to the zoo by my parents.

34. we saw many soldiers and tanks that move to the front.

35. In the middle of the village there is a well which villagers take water to drink.

36. This machine is used to baking bread.

37  i have tested my eyes for 2 months.

38. He introduced me to his students whom were from abroad.

Tham khảo nha bạn