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. talked

B. had talked

C. has talked

D. was talking

答案：

A. talked

B. had talked

C. has talked

(答案→)D. was talking

解析：根据句意，应指昨晚他的哥哥一直在通话中，故用过去进行时。