this is it 购买问题

this is it正版DVD在西安哪里有卖的?

is this it ? This is的问题 This is how we do it歌词 this is it怎么翻译成中文？ this is how we do it This is a heads up that it is coming.中文？ This is ____ I took. Is it _____nice one? 1.What is this? -----It is a dog. 为什么不能用This is a dog. This is a fruit. It has many eyes ,but it never cries .It can't see.What is this? It is reported that this is the largest animal__in this area