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I had wanted to help you last night but I couldn't spare any time, for I＿＿＿a composition which I have to hand in this morning.
A．wroteB．was writingC．had writtenD．have written
B

試題分析：考查時態(tài)：句意：昨天晚上我本來想幫助你的，但是我騰不出時間，因?yàn)槲艺趯懸黄裉煸缟弦坏淖魑�。因�(yàn)槭亲蛱焱砩险谧觥�，用過去進(jìn)行時，選B。
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