III.

1. You should take a short rest.

2. Hoa should stay in bed.

3. Minh should clean it everyday.

4. You should learn your lessons carefully.

5. Nga should take an aspirin.

6. You should brush them regularly.

IV.

1. will do

2. will call

3. will recover

4. will return

5. will stay

6. Will you take

7. won't come

V.

1. You shouldn't park

2. should I cook

3. You should wear

4. You shouldn't smoke

5. We should arrive

6. Should I send

7. I shoud apply

8. I should write

9. I shouldn't eat

10. We should complain