chuyển câu bị động thành câu chủ động Were you taught how to apply this theory by your teacher? Dont let the dog be teased by the children. What have been done to help the poor in this city? Where did the treasure use to be hidden by pirates in the old time?

Đáp án:

Were you taught how to apply this theory by your teacher?

=>Did your teacher teach you how to apply this theory?

Câu bị động ở dạng quá khứ

Did(not) + S + V_bare_ + o?
=> Was/Were(not) + S + V_ptII_ + by + O?

Dont let the dog be teased by the children.

Câu bị động với câu mệnh lệnh

+ Chủ động: Don't + S + V + O
=> Let + O + be + V_ptII_

=>Don't let the children tease the dog

What have been done to help the poor in this city?

Câu bị động ở thì HTHT

+ Chủ động: Question words + have/ has + S + V_ptII_ + O?
=> Question words + have/ has + S + been V_ptII_ + by O?

=>What have we done to help the poor in this city ?

Where did the treasure use to be hidden by pirates in the old time?

Câu bị động ở thì Qúa khứ

+ Chủ động : Question words + did + S + V_bare_ + O?
=> Question words + was/were + S + V_ptII_ + O?

=> Where did pirates use to hide the treasure in the old time?