For convenience, it is common to speak of plants as "herbs,"shrubs"and "trees", but it is really no sharp distictions among them.我认为第2个是错的。答案是第3个。of 前不是应该名词吗?有谁会的帮一忙.
作者: hdrtrw112 时间: 2004-12-12 20:29
speak of 是固定用法,是个动词词组,意思是谈及,说到。D是错误的,应改为there is
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