Is this watch yours?No,mine is new._____Betty.I think it's h

Is this watch yours?No,mine is new._____Betty.I think it's h whose pen is this?is it yours?no it's not mine.maybe it's() 前面两句是a：it's a football.is it yours?b：No,mine is h "is this coat yours?No,it's not mine."此句中为什么要用yours和mine? Is this hat like yours?No.It's()mine.A.different from B.diff 王老师,Excuse me .Is this ( yours) (你的) hat?No,it's not mine.(我 A:____,is this MP3 player yours?B:No.it isn't,I've got mine —Is this watch yours,Jenny?—No,it isn't.I ______ ______ ____ Excuse me,is this watch y______?No,it's not mine. is this ( ) watch no,it's not ( ) Is it yours?NO,it isn't mine book.It's his.I'd like to buy a John,is this computer game yours?No,it is not mine.Ask the t