问题补充:
----.Let’s go to find our manager in his office.
----It’s so late at night .He be there . Let’s make it another day .
A. can’t
B. needn’t
C. mustn’t
D. ought not to have been
答案:
(答案→)A. can’t
B. needn’t
C. mustn’t
D. ought not to have been
解析:考查情态动词。can’t不可能。句意:晚上太迟了,他不可能在那儿。故选A。