have to be home by 10 o'clock 为什么用by

I have to be home by 10：00pm为什么是be home而不是go home I have to be home by ten o'clock.为什么不是be at home? have to be home 和 have to get home的区别十点之前必须到家是have to be home by 10 o'clock还是have to get home by 10 o'clock have to be home by 10 o'clock 为什么用by i have to _____at home ____ten o`clock 1./,by 2.is,by 3.be,by 4,be,after I have to be home by 10 o'clock(对10 o'clock 提问） i have to be home by 10:00 的句型分析,be 在这是什么成分,不是用go I have to be home by 10:00pm.不应有at吗不应在home前加at吗?再说那我在家不是I'm at home. 1 you mustn't come home late.you must be home at half past ten.这句中的at能不能改为by 为什么?2 be home 和 get home 的区别3 can i have the key to the front door please?中为什么用to 而不是用的其他 I have to be home by 10 pm.A so do I B so have I 为什么选A不选B I can t——(be) outside late because i have to be back home by 9:00 in the evening 1,does he have to practice speaking english every day.为什么speak要加ing?2,我不得不在六点以前到家i have to get home by 6 o'clock以前”为什么没有before这个单词?为什么用by不用at?3,we had fun riding our bikes to the be have to be与have to 有什么区别为什么非是have to be at home? He has to ________ by 10:00 o'clock.( ) A.be home B.is home C.back to home D.go to home 1、I don't like____(be) at home by m____.2、He t___ his best to learn maths. 填上适当的介词或副词：I will be allowd to have Mongday _____ to go home.（1）I will be allowd to have Monday _____ to go home.(2)They will come _____ air. and i have to be in ____ by 10 pm When do the applications have to be in by? 中文?