She（）have missed the first bus, or she（）be here so early.
A: needn't, shouldn't
B: couldn't can't
C: shouldn't, mayn't
D: mustn't, wouldn't
A: needn't, shouldn't
B: couldn't can't
C: shouldn't, mayn't
D: mustn't, wouldn't
举一反三
- She ______ left the hospital so soon, for she had not yet recovered. A: shouldn't have B: wouldn't have C: couldn't have D: mustn't have
- 16. She has no idea of what the book is about. She ____ have read it very carefully. A: mustn’t B: can’t C: shouldn’t D: needn’t
- I didn't see her in the meeting-room this afternoon. She ______ at the meeting. A: mustn't have spoken B: shouldn't have spoken C: needn't have spoken D: couldn't have spoken
- I didn’t see her in the meeting room this morning. She _____ at the meeting. A: mustn’t have spoken B: shouldn’t have spoken C: needn’t have spoken D: couldn’t have spoken
- Nina______back home if she had known that her husband would go to the bus stop to meet her. A: couldn"t have walked B: shouldn"t have walked C: mustn"t have walked D: wouldn"t have walked