Question

【题目】—Look! Mr. Hu is on the other side of the street.
—It __________ be him. He has gone to Lanzhou.
A.mustn't
B.can't
C.shouldn't
D.won't

Answer 1

【答案】B
【解析】句意：—看！胡先生正在街道的另一边。—不可能是他。他已经到兰州去了。A. mustn't禁止，千万别；B. can't不可能；C. shouldn't 不应该；D. won't不会。此句是否定的推测，要用can't，故选B。