I called Mary many times yesterday evening but I couldn’t get through. Her brother on th

问题补充：

I called Mary many times yesterday evening, but I couldn’t get through. Her brother on the phone all the time.

A. was talking

B. has been talking

C. had talked

D. talked

答案：

(答案→)A. was talking

B. has been talking

C. had talked

D. talked

解析：考查时态，由时间状语all the time，可以知道时态是进行时，因为前面时间状语yesterday evening，所以是过去进行时，所以选A