题目内容
2．--I want to borrow the book，but I don't know how long it may _______．--For two weeks．（ ）
| A． | borrow | B． | be borrowed | C． | keep | D． | be kept |
分析 --我想借这本书，但是我不知道这本书我可以借多长时间．
--两个星期．
解答 答案：D．
根据but I don't know how long it may，可知，这里how long是指一段时间，动词应该用延续性动词，而borrow是个非延续性动词，这里应该用keep，在这里it是指book，它是动作keep的承受者，所以句子应该用被动语态，这里含有情态动词may，所以使用含有情态动词的被动语态，构成：情态动词+be+动词过去分词．故选D．
点评 本题考查了情态动词的被动语态．结构：情态动词+be+动词过去分词．
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