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6.We can not help but____what unknown greatness human beings have has not yet been discovered.(  )
A.to wonderB.wonderC.wonderingD.wondered

分析 我们不得不想知道人类还有什么伟大之处是没有被发掘的.

解答 答案:B
根据题干分析"what unknown greatness human beings have has not yet been discovered"是"wonder"后一个宾语从句,"human beings have"又是greatness一个定语从句.另外,can not help but do 固定短语"不得不做",故选B.

点评 本题考查固定短语.题干比较难,要求学生平时要多积累相关短语,并学会分析句子结构.

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