this is not my ... 和 it isn‘t my ... 有什么区别么?

It is not my shirt 和 This is not my shirt ,有什么区别 This is not my pen.M______ is This world is not my home 翻译 This is not my fault什么意思 Not this my is pencil是什么意思 This not is my computer是什么意思 this is not my sister 缩写 This is not my piece of cake. 用my和mine造句,例如：this pencil in my pencilcase is not mine this is not my ... 和 it isn‘t my ... 有什么区别么? Do not play with my patience,this is not fun . This is not my hat,but my -----(brother). This is not my shirt.M___ is blue This is not my blouse._____(I) is at home This is not my bike.____(I)is new. scene和plot有什么区别?i think this scene is filmed in my hometown.the plot is not realistic 求歌词：艾薇儿 this is not my name this is not my umbrella.把句子变成复数形式