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
网友回答
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。