Question

 1. Miriam always turns off the lights before she leaves the house.

2.the little boy broke the ball when he was kicking it yesterday.

Answer 1

1 The lights are always turned off by Miriam before the house is left (by her).

Bị động hiện tại đơn: S + am/is/are + PII + (by O)+....

2 The ball was broken by the little boy when it was being kicked (by him) yesterday.

Bị động quá tại đơn: S + was/were + PII + (by O)+....

*Trạng từ chỉ nơi chốn/mục đích/ phương tiện/....... + by O + trạng từ chỉ thời gian.

*Trong câu bị động có thể bỏ: by us, by me, by you, by her, by them, by it, by him.