-Listen! Helen is singing in the next room.-It__________ be Helen. She has gone to Beijing.[ ]A. can

题目简介

-Listen! Helen is singing in the next room.-It__________ be Helen. She has gone to Beijing.[ ]A. can

题目详情

-Listen! Helen is singing in the next room.
-It __________ be Helen. She has gone to Beijing.
[     ]
A. can't
B. mustn't
C. may
D. should
题型:单选题难度:偏易来源:同步题

答案

A

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