—Why weren’t you at the meeting? —I for a long distance call from my sister in America.A.

问题补充：

—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：句意：--你为什么没有开会？--我一直在等美国姐姐的长途电话。由第一句话：Why weren’t you at the meeting?可知是过去没有开会，所以第二句是在别人开会的时候，他正在等一个长途电话，用过去进行时，所以选B。