Viết lại các câu sau sử dụng mệnh đề quan hệ

Viết lại các câu sau sử dụng mệnh đề quan hệ:

1. The man is my teacher. He is standing over there.

2. I have a friend. She can speak five languages.

3. The book is on the table. It is mine.

4. The woman is very kind. I met her yesterday.

5. The students are reading books. They are in the library.