I this book for two weeks. I have to return it nowA.borrowedB.have borrowedC.keptD.have kept
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D解析试题分析：句意：这本书我已经借了两周了，现在我必须归还它。borrow是非延续性动词，用于现在完成时态时不能和时间段连用。可用延续性动词keep代替borrow。考点：延续性动词和非延续性动词
点评：非延续性动词向延续性动词的转变熟记一下几个：leave --- be away, borrow --- keep, buy --- have, begin/start --- be on, die --- be dead, leave --- be away from, fall asleep --- be asleep