It took me a long time before I was able to fully appreciate what theyfor me.A. had doneB.

发布时间：2020-08-16 11:33:21


It took me a long time before I was able to fully appreciate what they    for me.
A. had done
B. did
C. would do
D. were doing

网友回答

(答案→)A. had done
B. did
C. would do
D. were doing
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