We were about to start___in rained heavily.A when B as C while D since

熱心網友

我覺得選C

熱心網友

我選B,as表示副代說明.

熱心網友

選A,該題是過去將來時的搭配,譯為我們正要出發時雨下大了.另外原題的"in"是"it"吧.