问题补充:
The meeting by the time I got there yesterday.
A. was on
B. has been on
C. had begun
D. has begun
答案:
A. was on
B. has been on
(答案→)C. had begun
D. has begun
解析:考查时态。根据时间状语by the time I got there yesterday在我昨天到达那儿之前,可知用过去完成时连用。句意:在我昨天到达那儿之前,会议已经开始了。