题目内容
—Listen ! Helen is singing in the next room.
—It __________ be Helen. She is in Tianjin now.
—It __________ be Helen. She is in Tianjin now.
A.can’t | B.mustn’t | C.may not | D.shouldn’t |
A
根据后文的答语She is in Tianjin now,可作出推测,不可能是Helen,故选A
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