You _____________ brush your teeth at least twice a day.
A: should
B: shouldn't
C: mustn't
D: can't
A: should
B: shouldn't
C: mustn't
D: can't
举一反三
- Johnny, you play with the knife; you hurt yourself A: won't; can't B: can't; shouldn't C: shouldn't; must D: mustn't; may
- You _________ arrive on time. You could lose your job if you arrive late. A: should B: shouldn’t C: must D: mustn’t
- A: ______ I drive your new car, dad?B: No, you _______. A: Can; needn't B: Must; mustn't C: May; shouldn't
- You _______ play with the knife. You ______ hurt yourself. A: won’t, can’t B: mustn’t, may C: shouldn’t, must
- You ________ update the software.It does it automatically. A: can’t B: mustn’t C: don't have to D: shouldn't