=>
4/
1. had been done/went
2. had lived/moved
3. told/had learned
4. had worked/retired
5. got/ had already been prepared
6. came/had changed
7. had grown
8. was made/had waited

5/
1. I wish I could speak English well.
2. He is considered to be the best teacher.
3. Despite his disobedience, the teacher has been tolerant.
4. She suggested going swimming.
5. She suggested going to the spa that weekend.
6. Bell advised me not to sympathize with that noisy boy.
7. An elevated walker is said to be built next year.
8. The quality of life has been improved dramatically.
9. It is kind of you to do me a favor.
10. I was glad to receive a gift from an old friend.
11. I used to smoke and drink when I was sad.
12. Although the price is rising slightly, I can afford it.

Bài 4

1.did/ went

2.lived/ moved

3.told/ learned

4.worked/ retired

5.got/ has already prepared

6.came/ changed

7.grew

8.made/ waited