Giúp tớ với cảm ơn ạ

`@` Câu tường thuật dạng Yes/No Questions : S + asked (O)/wondered/wanted to know + if/whether + S + V(lùi thì) + O

`@` Câu tường thuật dạng W.H Questions : S + asked (O)/wondered/wanted to know + W.H + S + V(lùi thì) + O 

`1,` She asked me why I wanted to take the course.

- Lùi thì : HTĐ -> QKĐ
- Đổi ngôi : you -> I

`2,` Helen asked Jack what he said.

- Lùi thì : HTĐ -> QKĐ

- Đổi ngôi : you -> he

`3,` He wanted to know if I saw Mary.

- Lùi thì : HTĐ -> QKĐ

- Đổi ngôi : you -> I

`4,` I asked my friend when he/she would come back.

- Lùi thì : will -> would

- Đổi ngổi : you -> she/he (my friend không xác định)

`5,` He asked who had put salt in his coffee.

- Lùi thì : QKĐ -> QKHT

- Đổi ngôi : my -> his

`6,` He asked her why she thought it might be dangerous.

- Lùi thì : HTĐ -> QKĐ , may -> might

- Đổi ngôi : you -> she 

1. " Why do you want to take the course?"

-> She asked me why I wanted to take  the course.

2. Helen said " What do you say, Jack?"

-> Helen asked Jack what he said.

3. He said " Do you see Mary?"

-> He wanted to know whether I saw Mary.

4. I said to my friend: " When will you come back?"

-> I asked my friend when he/she would come back.

5. He asked " Who put salt in my coffee?"

-> He asked who put salt in his coffee.

6. He asked her " Why do you think it may be dangerous?"

-> He asked her why she thought it might be dangerous.