Tom be in his office so late that night. I saw him with his friends in the restaurant .A.

问题补充：

Tom be in his office so late that night. I saw him with his friends in the restaurant .

A. can’t

B. may not

C. mustn’t

D. shouldn’t

答案：

(答案→)A. can’t

B. may not

C. mustn’t

D. shouldn’t

解析：can’t不能，是can not的缩写。may not不可以。mustn’t禁止。shouldn’t不应该。句意： 汤姆那天晚上不能在办公室呆那么晚，因为我在餐馆看见他和朋友在一起。故选A。