Ответ:
B
A: can
B: mustn’t
A: do I have to
B: need to
2
A: Could
B: can’t / have to
C
1. comfortable
2. more interested
3. more tiring
4. careful
5. worst
6. farther
7. happiest
8. most exciting
D
1. Can you tell me where your passport is.
2. Do you know who Jack’s mother is.
3. Do you know why the shops are still closed.
4. Can you tell me how much this sleeping bag costs.
5. Do you know how many languages our tour guide speaks.