(3/4) was about to leave while it began to rain.4.If we'll go camping
问题描述:
(3/4) was about to leave while it began to rain.4.If we'll go camping
答
was about to leave when it began to rain. 4. Whether we'll go camping
If 不能引导主语从句。Whether可以。
答
while改成when
we'll改成we