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18、----What do you think has caused the fearful hurricane in American?

-----  out too much warm gas

   A. People cut forest at will and let

   B. Because people cut forest at will and let

   C.When people cut forest at will and let

   D.People’s cutting forest at will and letting

18、A 

解析:C项, 不定式表示将要发生的动作,不合题意,首先排除。当分词与主句的主语之间为逻辑上的主谓关系时,状语用现在分词,排除D项。句意:这位生意人因先遭受了两次重大损失,他经历了一段艰难的时期,失去了把生意进展下去的勇气。当分词的动作或状态先于主句谓语动词而发生时,应使用现在分词的完成式having done来表示,因此,排除B项。

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----What do you think has caused the fearful hurricane in American?

-----  out too much warm gas

   A. People cut forest at will and let

   B. Because people cut forest at will and let

   C.When people cut forest at will and let

   D.People’s cutting forest at will and letting

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科目:高中英语 来源: 题型:

----What do you think has caused the fearful hurricane in American?

-----       out too much warm gas

   A. People cut forest at will and let

   B. Because people cut forest at will and let

   C.When people cut forest at will and let

   D.People’s cutting forest at will and letting

 

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