-----Who it be that hasn’t handed it in yesterday? ------It _ be Bob. He handed it in y

题目简介

-----Who ______ it be that hasn’t handed it in yesterday? ------It _______ be Bob. He handed it in y

-----Who ______ it be that hasn’t handed it in yesterday?
------It _______ be Bob. He handed it in yesterday.

A．can; mustn’t

B．must; can

C．can; can’t

D．may; mustn’t

题型：单选题难度：中档来源：不详

考查情态动词用法。第一空是强调句型的变化形式。第二空是表示有把握的否定的推测。Can’t不可能。句意：——昨天谁可能没有上交？——不可能是Bob，他昨天交了。