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

问题补充：

I called Hannah many times yesterday evening，but I couldn get through. Her brother on the phone all the time!

A. was talking

B. has been talking

C. has talked

D. talked

答案：

(答案→)A. was talking

B. has been talking

C. has talked

D. talked

解析：考查时态；这是一个选用过去进行时的固定语境。过去进行时表示过去正在发生的动作。现在完成时和一般过去时不符合这个固定语境。而现在完成进行时必须是动作持续到现在，而显然是不符合题意的。