You smoke when you see the sign ． A．must B．should C．mustn't D．needn't——青夏教育精英家教网——

题目内容

You _________ smoke when you see the sign ．

A．must B．should C．mustn't D．needn't

试题答案

1、C

相关题目

You _________ smoke when you see the sign ．

A．must B．should C．mustn't D．needn't

查看习题详情和答案>>