I beilieve Zoe will pass the exam,she ( ) for it for such a long time C 还是D 不懂啊
题目
I beilieve Zoe will pass the exam,she ( ) for it for such a long time C 还是D 不懂啊
A is preparing B was preparing C had been preparing D has been preparing
答案
选D 因为根据前句语境,是现在时,所以应该用现在完成时.
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