They are not here .Ten to one they're in the classroom.What does 'ten to one' mean?

Are these _____ tickets?No,_____ are not _____._____ aren't here.(they) They are new students here.I don't know____(they). Everybody is here,aren't they?【名词、副词】Everybody is here,aren't they?Everything is ready,isn't it 为什么前者用are,后者用is not as...asnot so...as are these （their） tickets为啥填their NO,they are not （their）为啥填their Their aren't here为啥填theirs Are these _______ cards?No,______ are not ______ ._______ aren't here.(they)用所给词的适当形式填空 Yes!Here they are! Here they are They are new here Here they are Those presents are not ours .They are t( ). 什么are not here All are not here They are not dangerous, __? 用aren't they 还是are they They said I was not allowed to smoke here,they don't allow smoking here,中的smoke讲解 改正下列句子错误,只有一处,不能改变句子意思You don't are here.You are here?(是不是把You和are换位置?)Are you here?They want to play tennis.It not is my uncle.Are you like me?(是不是把Are换成do?)We Is there anybody here?回答是不是Yes,they are.或No,they aren't. -Are they happy?—Not they,为什么不是not them?而且为什么可以用not?为什么不用they aren't they are very tired.why [don't they,not they,do they,not to] have a rest