The room must have been cleaned by Tom yesterday,-------- it

问题描述：

The room must have been cleaned by Tom yesterday,________ it?
A.mustn't B.hasn't C.didn't D.wasn't
选D
1个回答 分类：英语 2014-12-03

问题解答：

我来补答
The room must have been cleaned by Tom yesterday,________ it?
A.mustn't B.hasn't C.didn't D.wasn't
选D
这边是【must have been done】的结构,表示的是一种对过去的推测
所以反义疑问句不用mustn't it 而用【wasn't it】这是一种特殊用法
 
 
展开全文阅读
剩余:2000字
上一页：不是奥数题
下一页：高中数学必修4同角三角函数的基本关系
也许感兴趣的知识