问题补充:
23.- Why weren’t you at the meeting?
- I for a long distance call from my sister in America.
A. was waited
B. was waiting
C. has waited
D. have been waiting
答案:
A. was waited
(答案→)B. was waiting
C. has waited
D. have been waiting
解析:考查时态。句意:你为什么没有开会?——我正在等一个来自美国我的妹妹的一个长途电话。根据语境可知下文描述的是刚才正在进行的动作,所以用过去进行时态。选B。