this 和that用法的区别

this 和that用法的区别 THIS、THAT和IT的指代用法有什么区别? THIS,THAT和IT的指代用法有什么区别 问this that these those there 的用法和区别~ that is why和 this is why用法的区别 this和that的区别 that 和this的区别? this,that的用法 these,this,that,those,it,they等的用法和区别 区别one,it,that,this作代词的时候意义和用法有什么不同? there those this that 的用法和区别顺便搞点例句! this these those的用法和区别 that和this的用法及区别that和this在句子里怎么用?用于哪里?他们的区别是什么?Is this your book？Is that your ruler？两个差不多的句子，为什么一个用this一个用that？ 指示代词“this,these,that,those”的用法与区别 ,one和that的用法跟区别 that和which的用法区别 which 和that的用法区别 this和that的用法,有什么不同和相同?