广东省林业厅:求英语单选详解5

来源:百度文库 编辑:杭州交通信息网 时间:2024/04/29 01:00:19
There is no light or sound in the house. They must have gone to the cinema,( )?
A.didn't they B.don't they C.mudtn't they D.haven't they
用B还是用D?着重区分一下
要详解!!

此处 must表示肯定的推测,有没有时间状语,因此选择 B

B