1. Mr.Smith asked me: " Why don't you answer my questions?"

`->` Mr. Smith asked me why I didn't answer his questions.

- Cấu trúc câu tường thuật có từ để hỏi: S + asked + O + từ để hỏi + S2 + V lùi thì

2. What a pity you can't take part in with us. 

`->` We wish you could take part in with us. 

- Câu mong ước nên lùi thì, chuyển phủ định snag khẳng định.

3. They can't make tea with cold water.

`->` Tea can't be made with cold water.

- Câu bị động với "can": S + can be + Vpp

1: Mr.Smith asked me: " Why don't you answer my questions?"

--> Mr.Smith asked me if why i didn't answer his question

2 What a pity you can't take part in with us.

--> We wish you took part in with us

3 They can't make tea with cold water

-->tea can't be made with cold water