Bạn tham khảo.

1. I come from Vietnam. Vietnam exports a lot of rice. (WHICH)

=>I come from Vietnam. Viet Nam is a country which exports a lot of rice.

2. “Don’t make noise in class”, the teacher said to his students. (TOLD)

=>The teacher told the students that we didn't make so much noise.

5. He doesn’t have a computer now. (WISHES)

=>He wishes he had a computer.

6. It’s 3 years since I last saw Nam. (SEEN)

=>I haven't seen Nam for 3 years.

7. “You’d better not stay up too late, Mary.” (ADVISED)

=>My parents advised me not to stay up late. 

10. “Where do your parents live now?” said Nam to me. (ASKED)

=>Nam asked me where my parents lived then.

18. He was so tired that he couldn’t see the end of the film. (TOO)

=>He was too tired to see the end of the film.

20. Jane can play the piano better than Bella (WELL)

=>Bella can't play piano as well as Jane.

Cho mình hỏi là câu hỏi của bài này là viết lại câu không ạ.