Question

【题目】—That must be Mr. John.

—No, it ________ be him. I saw him off at the airport half an hour ago.

A. may not B. mustn't C. can't D. needn't

Answer 1

【答案】C

【解析】

试题分析：句意：那一定是约翰先生。——不，不可能是他。我看见他在半小时前到达机场。英语中，肯定的推测用must；否定的推测用can’t。依据句意，应该是否定的推测，答案为C。