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- It be Mr.Johnson who is in the office.- No, it be him.I saw him off at the air

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- It be Mr.Johnson who is in the office.- No, it be him.I saw him off at the air

— It _______ be Mr.Johnson who is in the office.

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

A.can’t ; can’tB.must; can’tC.must; mustn’tD.may; mustn’t

试题答案

B

解析