—Listen ! Helen is singing in the next room.—It be Helen. She is in Tianjin now.A. can’tB

发布时间：2020-08-21 13:15:31

—Listen ! Helen is singing in the next room.
—It      be Helen. She is in Tianjin now.   
A. can’t
B. mustn’t
C. may not
D. shouldn’t

网友回答

(答案→)A. can’t
B. mustn’t
C. may not
D. shouldn’t
解析：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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