问题描述：
should have gone 和 must have gone的区别,是高中的语法可是忘记了.
The house is dark.; the Browns ______ to bed.
A.may go B.should go C.should have gone D.must have gone
为什么选D不选c?
The house is dark.; the Browns ______ to bed.
A.may go B.should go C.should have gone D.must have gone
为什么选D不选c?
问题解答：
我来补答展开全文阅读