问题

Why haven’t you asked her to comehere—She _______ an important experiment when Ifound 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
B:was doing ; hasn’t finished
C:did ; wouldn’t finish
D:did; hadn’t finished
正确答案是:
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