—Why haven’t you asked her to come here?—She an important experiment when I found her an

问题补充：

—Why haven’t you asked her to come here?

—She an important experiment when I found her and she it.

A. had done ; didn’t finish

B. was doing ; hasn’t finished

C. did ; wouldn’t finish

D. did; hadn’t finished

答案：

A. had done ; didn’t finish

(答案→)B. was doing ; hasn’t finished

C. did ; wouldn’t finish

D. did; hadn’t finished

解析：考查时态。“你为什么没让她来这里？”“当我找到她时，她正在做一个重要的实验，她还没做完。”根据句意可知，第一空应该用过去进行时。发生在过去的事情，对现在造成的影响，用现在完成时。故选B。