We don’t imagine the twins have arrived, ______
A: do we
B: don’t we
C: have they
D: haven’t they
A: do we
B: don’t we
C: have they
D: haven’t they
举一反三
- We have to do another experiment today, ____?: did we|don’t we|have we|shouldn’t we
- We have to do another experiment today, ____? A: have we B: don’t we C: did we D: shouldn’t we
- 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
- I don’t enjoy hot weather in summer, but we have to it, don’t we?
- Don’t worry. We have enough time (__) (do) the work.