3. The teacher wondered if she went to school by bus or on foot.

*Câu tường thuật với Yes/No-question:

S + asked/ wanted to know/ wondered/... + (O) + if/ whether + S + V (lùi thì)

- Lùi thì: Hiện tại đơn -> Quá khứ đơn

- Đổi ngôi: You -> She

4. Peter asked her when she was going to have dinner.

*Câu tường thuật với WH-question:

S + asked/ wanted to know/ wondered/... + (O) + WH-words + S + V (lùi thì)

- Lùi thì: Tương lai gần -> was/ were + going to 

- Đổi ngôi: You -> she

5. His friend asked if I would be making a speech on TV at that time the next day.

*Câu tường thuật với Yes/No-question

- Lùi thì: will -> would

- Đổi ngôi: You -> I

- Đại từ: this > that

- Trạng từ: tomorrow -> the next day/ the following day

3.The teacher asked her if she went to school by bus or on foot

- Câu tường thuật dạng Yes/No Questions

- S + asked + sb + if/whether + S + V(lùi thì) + ... 

- you -> she (đổi đại từ) 

- Thì HTĐ -> Thì QKĐ (đổi thì)

4.Peter asked her when she was going to have dinner

- Câu tường thuật dạng Wh-?

- S + asked + sb + Wh-? + S + V(lùi thì) + ... 

- you -> she (đổi đại từ) 

- are you going to -> she was going to (lùi thì) 

5.His friend asked if I would be making a speech on TV at this time the next day 

- Câu tường thuật dạng Yes/No Question 

- S + asked + sb + if/whether + S + V(lùi thì)

- will be making -> would be making (lùi thì)

- tomorrow -> the next day/the following day(lùi trạng từ)