listen!Someone is siinging in next room.()it be Mary?NO.It ( )be her .she is at school nowA.will ,may not B.must mustn't C.can can't D.may mustn't
问题描述：
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
答
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。
答
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.
答
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