Question

【题目】—Who is the man over there? Is it Mr Li?

—No, it ______ be him. Mr Li has gone to America.

A．mustn't B．may not

C．can't D．needn't

Answer 1

【答案】C

【解析】

试题分析：mustn’t：禁止、不许，不用在否定猜测中; may not：可能不是，用在不确定猜测中；needn’t没有必要；can't：不可能。（表示否定的推测）根据 Mr Li has gone to America.可知那个人不可能是李先生。故选C