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

题型：单选题题类：模拟题难易度：普通

2015届安徽宣城郎溪二中九年级下学期第一次模拟英语试卷

—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

举一反三

— It ________ be him, for he ________ Australia since last Thursday and hasn't returned.

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