You smoke in class.
A: don't have to
B: must
C: have to
D: mustn't
A: don't have to
B: must
C: have to
D: mustn't
举一反三
- If you want to study abroad, you learn English well. A: must B: have to C: don't have to D: mustn't
- If you don’t want to, you ______ to get there with us. A: mustn’t B: can’t C: don’t have D: have not
- — Must I finish reading the book today?—No. You ______ if you have something else to do. A: mustn’t B: couldn’t C: can’t D: don’t have to
- —Must I get up early tomorrow? A: you mustn’t B: I don’t think you have to C: you can’t D: you need
- You ______ a tip if you're not satisfied with the service. A: mustn't leave B: must leave C: can leave D: don't have to leave