标题: perceive as + perceive to be [打印本页] 作者: Snazzy 时间: 2004-2-6 05:55 标题: perceive as + perceive to be 693. The Audubon Society and other conservation groups, concerned over what they have perceived to be the serious threatening of the environment as posed by the policies of the government, are preparing for a major political effort. (A) have perceived to be the serious threatening of the environment as (B) perceived as the serious threat to the environment as (C) perceive being the serious threat to the environment (D) are perceiving as the serious threatening of the environment (E) perceive as the serious threat to the environment
E what's the difference between the 2? thanks作者: tonylin0824 时间: 2009-2-17 21:23
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