Thereisnolightorsoundinthehouse.

发布时间:2020-07-10 18:03:12

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.mustn't they











D.haven't they

网友回答

D解析当must表示推测,作“一定,准是”讲时,反意疑问部分的动词形式要根据must后面的动词形式确定;但当句中有表示过去的时间状语时,反意疑问部分用didn't。
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