1. Nam said that his sister liked reading old forktales.

2. Do you mind If give me information?

4. Hoa asked Mai whether Ha Long Bay was a famous place of Viet Nam.

5. While I was eating dinner, the phone rang.

6. I don't know how to use sewing machine.

7. My mother always complains about housework.

8. Angkor Wat was built for Hindus.

9. She comes here in order to learn English.

10. It is difficult to learn Japanese.

11. They were playing tennis at 10:30 yesterday morning.

12. We were delighted to get your letter yesterday.

13. The streets are cleaned by the workers every day.

14. The celebration will be hold tomorrow.

15. I was writting my report at 8 o'clock last night.
*Note:  Câu 3 có vấn đề gì với từ "tin" không ạ?