问题补充:
I to help you to do homework but I couldn’t spare any time. I a composition last night and I’ll finish it tomorrow.
A. wanted; wrote
B. had wanted; was writing
C. have wanted; wrote
D. wanted; have been writing
答案:
A. wanted; wrote
(答案→)B. had wanted; was writing
C. have wanted; wrote
D. wanted; have been writing
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