— There is somebody at the doorit be Tom?— No it be him. It’s just six o’clock. It’s

问题补充：

— There is somebody at the door. it be Tom?

— No, it be him. It’s just six o’clock. It’s too early.

A. May; can’t

B. Will; won’t

C. May; mustn’t

D. Must; may not

答案：

(答案→)A. May; can’t

B. Will; won’t

C. May; mustn’t

D. Must; may not

解析：此题重点考查情态动词的基本用法。