=>
1. Tung asked me if my brother was going to play chess.
3. Lam told me not to throw those books away. 
4. Lan asked me if I was going to leave the following day.
5. She told us to shut the door and not to lock it.
6. Nick asked Nga if she would have a Math Test the following week.
7. He asked me who my father would take to go to school the following day.
8. Nga asked me if I liked it.
9. Long asked how much those shoes were.
10. He asked me what time I went to work everyday.
11. Helen said that they were having breakfast in the sitting room then.
12. Mary asked me how long it took to get to Ha Long Bay.
13. She asked me where I could go then.
Câu tường thuật -> lùi thì
HTTD -> QKTD
Will -> would 
HTĐ -> QKĐ
can -> could
told sb (not) to V : bảo ai (không) làm gì