Yes/ No question : S asked (O) if/ whether S + V ....

Wh - question S asked (O) wh- words S + V ...

9. He asked me if I could speak any other languages.

10. Lan asked Hoa if you were interested in learning English.

11. Heasked me why I had to do that work.

12. He asked Lan what he was doing.

13. Lan asked me what I would do when I left school.

14. He asked Lan how she had known his name.

15. He asked Lan why she hadn't phoned him.

16. Lan asked me when she could see the doctor.

1. Nguyen asked his teacher when he should start the computer.

9. He asked me if I could speak some other languages

10. Lan asked Hoa if  she was interested in learning English

11.He asked me why I had to do that work 

12.He asked Lan what she was doing

13. Lan asked me what I would do when I left school

14. He asked Lan how she had known his name

15. He asked Lan why she hadn't phoned him

16. Lan asked me when she could see the doctor

17. Nguyen asked his teacher when he should start the computer

*Cấu trúc câu tường thuật : S + asked + tân ngữ + Wh-Qs + S + V(lùi thì)

                                               S + asked + tân ngữ + if/wether + S + V(lùi thì)...