-----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 |
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-----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 |