标题: 还是关于比较结构省略动词的问题！ [打印本页] 作者: lemonee 时间: 2003-8-27 05:57 标题: 还是关于比较结构省略动词的问题！ The mistakes children make in learning to speak tell linguists more about（ how they learn language than ）the correct forms they use. （A） how they learn language than （B） how one learns language than （C） how children learn language than do （D） learning language than （E） their language learning than do
答案是C .谁能告诉我什么时候DO可以省略，什么时候不能。
The average weekly wage near1y doub1ed in the l970' s， rising from ＄ 114 to ＄ 220， yet the average worker ended the decade（ with a decrease in what their pay may buy. ） （A） with a decrease in what their pay may buy （B） with what was a decrease in what they were able to buy （C）having decreased that which they could buy （D） decreasing in purchasing power （E） with a decrease in purchasing power 答案为E