1. The boy broke the windows last Sunday.

-> The windows were broken by the boy last Sunday.

2. Lan said: “I am living in London now”.

-> Lan said that she was living in London then/ at the moment.

3. They said: “Do you want to visit Nha Trang, Nam? ”

-> They asked Nam if he wanted to visit Nha Trang.

4. She is studying very hard because she wants to pass the exam.

-> She is studying very hard in order to pass the exam

5. “Do you like English, Nga?” The teacher asked.

-> The teacher asked if/whether Nga liked English.

6. It is a contest in which participants have to make a fire.

-> It’s a fire-making contest.