Британский язык.Можете посодействовать.

31.1
2. You must meet her.
3. I must wash them.
4. You must learn to drive.
5. I must go to the post office.
6. We must win.
7. You must be patient.

31.2
2. I must go now.
3. I had to work.
4. I must get up early.
5. I had to stay all the way.
6. I had to run to get there on time.
7. I must phone him later today.

31.3
2. We mustn't hurry.
3. You mustn't lose them.
4. You don't need to wait for me.
5. We mustn't forget to turn off the lights before we leave.
6. I don't need to phone him.

31.4
1.E
2.C
3.A
4.B
5.D

31.5
3. We don't need to reserve a table.
4. I had to work every evening.
5. You must tell me.
6. You mustn't tell Sue what happened.
7. I must hurry or I'll be late.
8. I had to wait half an hour for a bus.
9. We don't need to decide now.
10. I mustn't forget to buy her a present.