the wet weather will continue tomorrow when a cold front _____ to arrive.

问题描述:

the wet weather will continue tomorrow when a cold front _____ to arrive.
A.is expect B.is expecting C.expects D.will be expected
为什么不选D呢?明天的话不应该用将来时么?

A.is expected 写错了是吧,答案应该写选这个
首先肯定是被动语态,when 也存在主将从现的用法.主句用了将来时,从句用现在时