Question

【题目】— Is that man Mr. Smith?— It ________ be him. He has gone to New York on business.
A.may not
B.needn't
C.can't
D.mustn't

Answer 1

【答案】C
【解析】句意：那个人是史米斯先生吗？
这应该不是他。他出差去纽约了。表示委婉否定，故选C。