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标题: [求助]再来两道LZM语法 [打印本页]

作者: creditadvice 时间: 2004-4-29 09:37
标题: [求助]再来两道LZM语法

Executives and federal officials says that the use of crack and cocaine is growing rapidly among workers, significantly compounding the effects of drug and alcohol abuse, which already are a cost to business of more $100 billion a year.

(B) significantly compounding the effects of drug and alcohol abuse, which already cost business

(E) significantly compounding the effects of drug and alcohol abuse, and already costs business

为何选B, 而不是选E呢? "already cost business" 的主语是什么呢?

[此贴子已经被作者于2004-4-29 9:38:05编辑过]

作者: iamwwh 时间: 2004-4-29 10:20
这是 OG第 119题。可以看一下 OG的解释。

作者: mariezhu 时间: 2004-4-29 10:48
主语是drug and alcohol abuse

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