问题 选择题

I was on the point of going to bed ________ Mr. Zhang rang me up.

A.as

B.when

C.while

D.and

答案

B  

      题意:我刚要上床睡觉张先生打来了电话。句中的并列连词when =" just" at that time, 意为“这时(突然)”。

单项选择题
单项选择题