Giúp mình giải mấy câu này với

1. Tom said he wanted to buy a pocket calculator for his father.

2. She said she had once spent a summer in that village.

3. The nurse said to the Doctor that the patient in that room didn't obey his/her obey.

4. The said to me that I had taught them last year.

5. Mr.Brown said their trip cost them two thousand dollars.

6. Mr.Green said to Bill that please came to their dinner that night.

7. She said if the mechanis finished repairing his/her car.

8. She said why David had been looking so miserable lately.

9. I asked my friend if anyone had been hurt in the car accident the month before.

10. The teacher said to us not to make so much noise.