这个怎么读? this is

这个怎么读? this is this is it 怎么读? This is Mary.He is English.这个病句怎么改 This dog is lost 怎么读 Whose coat is this 怎么读? where is this wall?怎么读? 帮我看看This is怎么读 This is my voice怎么读 Is this怎么造句 Is this Tom?怎么回答 ____sweater is this怎么填空 this is because 怎么造句? this is nothing怎么翻译 Is this Pat?怎么答? Is this Pat?怎么答 this,is和is.this怎么区分谁在谁在后,这是我的狗,this,is,my,dog但能不能is,this,my,dog呢,这个应该有区分吧,明白说下方法! This it is an eraser.这个句子该用在哪,怎么用?为什么不用This ls an eraser. this computer is being attacked? 这个病毒怎么清除啊 怎么电脑老中这个病毒啊