--- May we leave the classroom now?
--- No, you . You to leave before the bell rings.
A. mustn’t, are allowed
B. don’t have to, are allowed
C. needn’t, aren’t allowed
D. can’t, aren’t allowed
网友回答
A. mustn’t, are allowed
B. don’t have to, are allowed
C. needn’t, aren’t allowed
(答案→)D. can’t, aren’t allowed
解析:mustn’t 语气非常重,表示“一定不要,禁止”等,一般不轻易用;can’t语气相对轻一些,常常用作may的否定;另外,当may表示推测“可能”时,其否定为:may not。Allow是允许的意思,这里我是被允许的对象。根据上文意思,这里应是否定形式,所以选D.