I beilieve Zoe will pass the exam,she ( ) for it for such a long time C 还是D 不懂啊

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
英语人气:327 ℃时间:2019-11-05 18:21:40
优质解答
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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