Rewrite the sentences

3. Thanh said to her teacher, "Will I finish my exercises at home?"
4. My friend said, "Are you going to leave tomorrow?"
5. They said to us, "Must you go now?"
6. I asked Nam, "Are you free tonight?"
7. Nam said to me, "Did you stay at home last night?"
8. The mother asked her son, "Have you finished your homework?"
->......
9. He said to her, "you are my friend."
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