大全289

puqiandi

289.    Executives and federal officials say 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 than $100 billion a year.
(A) significantly compounding the effects of drug and alcohol abuse, which already are a cost to business of
(B) significantly compounding the effects of drug and alcohol abuse, which already cost business
(C) significantly compounding the effects of drug and alcohol abuse, already with business costs of
(D) significant in compounding the effects of drug and alcohol abuse, and already costing business
(E) significant in compounding the effects of drug and alcohol abuse, and already costs business
选B， which already cost, 修饰的是谁

bonnie0715

abuse

puqiandi

总觉得指前面这件事，否则句意很怪。但which只能指n

silent7706

"the effects" or "drug and alcohol abuse".

花公子

http://forum.chasedream.com/GMAT_Math/thread-539069-1-1.html?postid=15000563&searchmode=TopicContent&searchtext=executives and federal

关于with修饰谁，上面那个帖子三楼有不同意见

求高人指点

cptgig

这里修饰effects which在 a of b, which中可以指代任意一个 看形态时态确定修饰对象