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15.You'd sound a lot more polite if you make a request _________ a question.(  )
A.in search ofB.in the form ofC.in need ofD.in memory of

分析 如果你以疑问的形式提出要求听起来会更礼貌.

解答 答案是B.本题主要考查介词短语辨析.in search of 搜寻;in the form of 以…形式;in need of 需要;in memory of为了纪念…;根据句句意和常识判断,"以疑问的形式"会使请求听起来更礼貌,所以答案选择B.

点评 本题考查介词短语的语义辨析,考生在平时的学习中应注意积累相应的短语和词汇,并牢记其意思.在做题时,将短语的意思和题干相结合,从语法、句子结构尤其是句意上去判断,句意通顺,符合逻辑,即正确答案.

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