whoissingsinginthenextroomIt()mysister.SheisgoingtosingatthepartythisSunday.A.can'tbeB.mustisC.m
2021-04-07 68次 反馈错误 加入收藏 正确率 : 100%
题目内容：
who is singsing in the next room It ( ) my sister.She is going to sing at the party this Sunday.
A.can't be
B.must is
C.must be
D.was
谢啦、、
优质解答
C
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