-you know their talks?where did you hide yourself at that time?-It was behind the tree ----------I could hear their talk directly.A.in whichBthatCwhichD from whereIt is said that the number of Chinese characters users can type on their mobile phone is ----------the total number of Chinese characters.25 percent as less as ,放进去怎么理解第一题答案选D

选择题：首先我们排除from where 的说法.因为where 在这里做adv前面不需要加上介词from 然后我们看A选项 其中 in which 虽然在某些情况下相当于where,用in which 引导从句.但是这里前面已经出现了介词behind,这个句子可以等同于 That was the tree behind which I could hear...这里如果使用which 就是说which 引导定语从句修饰tree,但是这里的用法显然不正确.这题选择B选项 是为强调句句型,我们把It was...that去掉,不影响句子成分,所以这里B是正确答案.
填空题：翻译过来是 据说可以使用手机录入文字的汉字用户至少达所有汉字用户的四分之一.as+比较级+as 的用法表示“至.”as less as 至少；as more as 至多； as...as和.一样