---Where are your parents?---They are in the kitchen.they the dinner for the party the whole day．( )A．are preparingB．have been preparedC．have been preparingD．were preparing 题目和参考答案——青夏教育精英家教网—

15．---Where are your parents？
---They are in the kitchen，they ______the dinner for the party the whole day．（　　）

	A．	are preparing		B．	have been prepared
	C．	have been preparing		D．	were preparing

分析 --你的父母在哪里？
--他们在厨房里，他们整天在为聚会的晚宴作准备．

解答答案：C 考查时态辨析．根据上下文及"the whole day"可知，表示在问话之前到现在"一直在准备"，要用现在完成进行时态．A项是现在进行时态，强调现在正在做，不强调连续性；B项是现在完成时态，表示已经准备好了；D项是过去进行时态，但句中并没有表示过去的时间状语．

点评解答此类问题要了解各种时态的用法，然后根据上下文及结合语境来选择正确答案．

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