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题目
题型:不详难度:来源:
    is known to us all is that the 2012 Olympic Games will take place in London.
A.ItB.WhatC.AsD.Which

答案
B
解析

试题分析:通过分析句子结构,可知这个句子中包含一个主语从句和一个表语从句。引导词在主语从句中作主语,且表示什么的含义,故用What。
点评:在句子中起主语作用的从句叫做主语从句。解答这类题,首先要确定从句是什么从句,然后依据相应的语法规则答题。主语从句中引导词的确定,要看它在主语从句中作什么成分,有没有什么实际意义。
核心考点
试题【    is known to us all is that the 2012 Olympic Games will take place in London.】;主要考察你对名词性从句等知识点的理解。[详细]
举一反三
It remains a question_______we can finish the project in such a short time.
A.whatB.thatC.how D.when

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       thousands of families from the earthquake-stricken area have moved into new houses is exciting news.
A.ThatB.WhatC.WhichD.It

题型:不详难度:| 查看答案
It doesn’t matter ________ you take it seriously, for _______ matters is that he can realize it.
A.whether; thatB.that; whatC.whether; whatD.that; that

题型:不详难度:| 查看答案
________ is surprising to us is that Tom, for _______ English was once boring, can speak English fluently as though he were a native speaker.
A.As; whomB.What; whoseC.It; whoseD.What; whom

题型:不详难度:| 查看答案
        some people regard as a drawback is seen as a plus by many others.
A.WhetherB.WhatC.ThatD.How

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