26. It must be five years since we last met in Beijing, ( )?
A: mustn't it
B: isn't it
C: wasn't it
D: will it
A: mustn't it
B: isn't it
C: wasn't it
D: will it
举一反三
- —The ground is wet. —It must have rained last night, ______. A: hasn't it B: didn't it C: mustn't it D: isn't it
- --The ground is wet. --It must have rained last night,( )?( ) A: mustn’t it B: didn’t it C: hasn’t it D: isn’t it
- The girl must have been reading at this moment last Sunday, ______ she A: wasn't B: didn't C: mustn' t D: hadn't
- —The ground is wet. —It must have rained last night, ______. A: hasn’t it B: B. didn’t it C: C. mustn’t it D: D. isn’t it
- It's been five years ( ) we met last year. (for, since)