She ______ be iii because I saw her playing tennis just now.
A: can't
B: couldn't
C: mustn't
D: may not
A: can't
B: couldn't
C: mustn't
D: may not
举一反三
- She __________be ill because I saw her playing tennis just now.
- Jack_______ be at home because I saw him in the library just now. A: can’t B: may C: must D: mustn’t
- He_____ upstairs because I saw him playing football on the playground just now. A: mustn’t be B: might not be C: can’t be D: should not be
- - “She must be in the dormitory now.”- “No, shebe there. I saw her in the classroom a minute ago.” A: mustn’t B: can’t C: C. couldn’t D: D. wouldn’t
- Mary _______ be at home. I saw her in the library just now. A: mustn’t B: needn’t C: shouldn’t D: can’t