提问~！关于prep 2008里一道double/twice 的题目

yiyiash · 发表于 2015-3-8 05:54:16

prep 2008 语法笔记 Final edition 里面有道题是这样的：

According to surveys by the National Institute on Drug Abuse, about 20 percent of young adults used cocaine in 1979, doubling those reported in the 1977 survey.
(A) doubling those reported in the 1977 survey
(B) to double the number the 1977 survey reported
(C) twice those the 1977 survey reported
(D) twice as much as those reported in the 1977 survey
(E) twice the number reported in the 1977 survey

OA：E。其中twice跳跃used cocaine修饰20 percent of

请问A为什么不对，是否是因为前面修饰的是20 percent，所以"those reported"不对，如果要用doubling那应该怎么写呢？Doubling the number in the 1977 surery正确吗？

sunyuwei · 发表于 2015-3-8 08:58:19

doubling修饰的是20 percent of young adults ，adult怎么可以发出double这个动作呢？

yuanzhenh · 发表于 2015-3-8 09:02:27

those 不对,没有先行词

提问~！关于prep 2008里一道double/twice 的题目

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