问题
选择题
— 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
答案：B
题目分析：考查固定句型。固定句型: be doing sth when…正在做某事在做这时…；when后面发生了意料之外的事情。句意：—为什么你不要求她来这里？—她正在做一个重要的实验在这时我发现她。她还没有完成。故B正确。
点评：固定句型: be doing sth when…正在做某事在做这时…；when后面发生了意料之外的事情
