题目内容
— Listen! Someone is knocking at the door. Who _______ it be?
— It ________ be John. He phoned to visit me a moment ago.
A. may, may B. may, shouldn’t
C. must, can D. can, must
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题目内容
— Listen! Someone is knocking at the door. Who _______ it be?
— It ________ be John. He phoned to visit me a moment ago.
A. may, may B. may, shouldn’t
C. must, can D. can, must