Question

【题目】Jill_______be in the office now. She has gone to the reading room.
A.can't
B.mustn't
C.needn't
D.shouldn't

Answer 1

【答案】A
【解析】句意：姬尔现在不可能在办公室。她去阅览室了。B mustn't 不准 不许 C needn't 不需要 D shouldn't 不应该 A can't 不可能，表示有把握的否定的猜测。所以选A。