问题 选择题

I was about to go to bed _____ one of my old classmates made a call to me.

A.when

B.as

C.while

D.that

答案

答案:A

句型考查。Be about to do sth when… 刚要…这时…。句意:我刚要睡觉这时一位老同学打电话给我。

单项选择题
单项选择题