I have to be in bed ___ ten o'clock.选A还是C呢?A.at B.in C.before D.after

I have to be in bed by ten o'clock.[用in bed提问] I have to be in bed by ten o'clock.这句中 by ten o'clock是什么意思,为什么不是at,have to be in bed 是什么句型. i have to be in bed for a few days.是什么意思 I have to be in bed by ten o’clock.的同意句是什么? have,to,in o'clock,I,bed,by,be,ten(.)连词成句 I have to ____ (be)in bed by nine o' clock have to be in bed 和have to go to bed 有什么区别 I have to be in bed (by ten o'clock).对括号内的提问_______ _________ you _______ ________ be in bed? I don't have to be bed等于什么啊? 英语翻译Getting ready for bed shortly.I have to be up for work in about 7 hours. I have to be in bed ___ ten o'clock.选A还是C呢?A.at B.in C.before D.after I have never dreamed of ______such a beautiful place in the world.A．having beenB．there been C．having to beD.there to be 帮我划分这些句子的主谓宾和 时态i never have any funwhat can i do?i have to be in bed by ten o'clocki have too many rules in my house she has to be in bed by ten.（对划线部分提问）答案是when does she have to be in bed我这么写行吗?what time does she have to be in bed I have to go to bed. 英语翻译Dear Dr know,I'm not happy.I have too many rules in my house.I have to get up at six o'clock every morning.I can't meet my friends after school because I have to do my homework.I can't watch TV on school nights.And I have to be in bed by be in bed 与 go to bed的区别是什么 用will或者be going to的正确形式填空,1.I m tired ,I think go to bed soon.2.you come in and have a drink3.I come to help if you need me.4,Look!It rain!