10. Tom asked Mary when she would leave there.

- will-> would, you-> she, here-> there

11. My friend asked how much I expected to earn.

- you-> I, expect-> expected

12. He asked if I liked working abroad.

- you-> I, like-> liked

13. The old lady asked the man if he could read that letter.

- can-> could, this-> that

14. She told me not to forget to post the letter. She reminded me to post the letter. 

15. I asked Lan how she would travel to work.

- will-> would, you-> she

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Câu gián tiếp:

Dạng Wh_question (câu 10, 11, 15) : S1+ asked+...+ wh-word+ S2+ V(lùi thì)...

Dạng Yes/ No question (câu 12, 13): S1+ asked+...+ if/ whether+ S2+ V(lùi thì)...

Dạng mệnh lệnh (câu 14) : told sb (not) to V: bảo ai (không) làm gì - câu 14 có thể sử dụng cấu trúc remind sb to V: nhắc nhở ai làm gì