No it is Helen. l left mine at home.为什么用mine而不用my呢

No it is Helen. l left mine at home.为什么用mine而不用my呢 is this your bicycle,david?no,it's not _____.it's helen's. Helen,what's this in English?it's a 71.____.how do you 72___it?（接下）B-A-S-E-B-A-L-L,beaseball.is it your baseball?no,it isn't .my brother likes ppiaying sports .it's73___baseball.is that your 74.___book?no,it isn't .look!sandra's75.___is on it is helen's coat brown?可以回答no,it isn't吗? l------- This?Yes,it is black.All right.What is your name?I am Helen.Ok.Here you are.Thank.空上填什么句子,Helen:------- Teacher:This?Helen:Yes,it is black.Teacher:All right.What is your name?Helen:I am Helen.Teacher:Ok.Here you are.Helen:Thank 根据对话内容,在横线处填入正确的单词,补全对话（以下）Helen,what's this in English?it's a 71.____.how do you 72___it?B-A-S-E-B-A-L-L,beaseball.is it your baseball?no,it isn't .my brother likes ppiaying sports .it's73___baseball 问几道英语填充题!Helen is an Australian _____ How about summer here? It's very___ . l usually go ___ in the lake. The weather here in winter is ___, isn't it? Yes,___ ___. ____it often snow in winter? No, but sometim Helen ,she is the girl l told you ____________. Mike:what day is today?Helen:it's()Mike:do you like()?Helen:no,i don't.i have().chinese lessons today.Mike:you()like chinese lessons.but i do.Helen:why?Mike:because we often read interesting stories in class.what()do you like?Helen:I like art A：Is this_____(you)?B:No,it's mnot______(I)comb _______(I) is at home.A:whose comb is it?B:Perhaps it's Helen's.It's______(she).A:Helen,is this comb______(you)?C:yes it's______(I)combthanl you.A:Not at all. ①this ②is ③dog ④Helen's ⑤no ⑥isn't ⑦it请用这些单词组成一句英文句子. It is Helen's computer game（Helen's computer game划线）对划线部分提问 It is no No doubt it is. if it is no no,is it not jacket is it Helen’s(连词成句) It is sunday .Helenmother ( )doing some shopping.