This is mine watch. This is my watch. 哪个是对的?为什么?

This is my watch.This is mine watch.哪个是对的?为什么? This is mine watch. This is my watch. 哪个是对的?为什么? -Is this you watch? is this your watch Is that this watch? This is my watch改为一般疑问句 This is my watch改为否定句 this is my watch 和here ismy watch 区别? This is a watch in English.对a watch提问 This is a watch.对a watch提问是什么? This is a watch.对a watch提问是什么?that The watch is mine.对mine提问