Question

listen! Someone is siinging in next room.()it be Mary? NO.It ( )be her .she is at school now

A.will , may not B.must mustn't C.can can't D.may mustn't

Answer 1

Listen!Someone is singing in next room.( ) it be Mary?
NO.It ( ) be her.She is at school now.

A.will , may not
B.must mustn't
C.can can't
D.may mustn't

答案：C

译文：听！有人在隔壁唱歌，是玛丽吗？

那不可能是玛丽，她现在在学校呢！

解析：can 表疑问推测

can't 表否定推测

Answer 2

C.can can't
can表推测, "可能" ,用于疑问句中
can't : "不可能", 表示否定的推测.
句意:听,有人在隔壁唱歌 . 会是玛丽吗? 不,不可能是她, 她现在正在上学.

Answer 3

选D can't 表示否定的推测 意思为“不可能”
A 不允许
B 没必要
C 禁止 mustn't不表示否定推测
所以选D
翻译：听！那是Kate在房间里弹钢琴吗？
不，不可能是她。她已经去非洲了。