You _____ dress smartly in this office. We’re very relaxed.
A: has to
B: don’t have to
C: should
D: mustn't
A: has to
B: don’t have to
C: should
D: mustn't
举一反三
- 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
- 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
- We are not allowed to touch it. We ______ touch it. A: mustn't B: mustn't to C: haven't to D: don't have to
- 3.They don't have to / mustn't use the same trademark as us. If they do, we'll sue. A: don't have to B: mustn't C: 无 D: 无
- 3.---What do you think we can do for our aged parents? ---You ____ do anything except to be with them and be yourself.A. don't have to B. oughtn't toC. mustn't D. can 't A: A. don't have to B: B. oughtn't to C: C. mustn't D: D. can 't