Tom,isn't it the third time that you ____ here to Beijing,as I know?A.come B.came C.have come为什么选C B错在哪里

Tom is said to have broken the glass of the window,-------------------?a,isn't he b,hasn't he c,didn't he d,isn't it The basketball isn't mine,it's____( ) A,Tom B,Toms' C,Tom's D,Tom and Tom's sister (选择) I,m the best ,isn,t it? 英语翻译Let's get the bags.Where's Ken's bag?It's big and blue.It's here.This is his.What about Brenda's bag?It's small and read.Umm.Here it is.This is hers.Can you see Mr and Mrs Sun's bag?It's very big.Is it green?No,it isn't.It's purple.Ah!Thi is Tom eight years old?回答回答是No，it isn't 还是No,he isn't Isn't it strange that the lazy boy这里Isn't it 是什么用法? Tom is ready for the party,____?A.is he B.isn t Tom C.isn t he D.is Tom -Is this a pencil?-_________.A.Yes,thi-Is this a pencil?-_________.A.Yes,this is.B.Yes,they are.C.No,it isn't. no,it isn't isn't it nice say it isn`t 改错：（1）.Tom studyed for the English test last night.(2).She isn't come from Canada.(3)It's time having dinner. -the sun isn't round,is it?-_____a.yes,it isn't b.no,it is c.yes,it is d.no,it isn't Tom isn't good at Maths.I think he needs to do more_____about it. ----Is this red handbag Tom's?----No,it isn't.____blue ---Tom isn’t having a good time at the moment.---- N_______ am I.---Tom isn’t having a good time at the moment.---- N_______ am I. Please come in t____ the entrance(根据句意,首字母或文中提示填写单词)还有It runs in the room and jump in Tom中的jump in在文中意思.It's not easy.Tom says.No,lt isn't.Ann says中No,it isn't在文中意思 sometimes it isn't easy being the new kid at