题目内容：

一道英语选择题,麻烦告诉我为什么这样选
I_to help you but I was not able to spare any time.I _a paper last night and I will finish it
tonight.
A wanted;have been writing B have wanted ;wroted
C had wanted;wrote D had wanted;was writing

优质解答

我过去想要帮助你 强调对现在的影响 所以用过去完成时 但是当时正在忙着写东西 用过去进行时 明白了吗 谢谢