问题描述:
before前后的时态,我们老师说主句过去,从句过去,或主句将来,从句一般现在
为什么我看见过主句过去完成,从句过去的啊
例:Every part had been searched for before the policemen arrived.
为什么我看见过主句过去完成,从句过去的啊
例:Every part had been searched for before the policemen arrived.
问题解答:
我来补答展开全文阅读