you must be active in class.如何翻译成中文?

you must be active in class.如何翻译成中文? i must be cull you I think you should be active in group work in class,should 后面为什么要用 be active 不直接用active如题. i think you must be a teacher是什么意思must be为什么不是must are?must I think you must be crazy. I think you must be learned.翻译 SO DO I,YOU MUST BE HAPPY I THINK YOU MUST BE CARZY that I fllow you must be right! Sorry ,I must be on you ,will be You must be I could be wrong呢？ I don't bother you,you must be very happy You must an active rather than a passive student意思? 英语翻译Dear Xiao Ming,I’m glad to receive your letter.In your letter you asked me about how to learn English well.I think you must listen carefully and be active in class.Speak as much as possible.Don’t be afraid of making mistakes.You’d b 1.I can't keep myself active during the day.You _____ take more exercise,a.must not b,need ,to c,must .be d.needs.2.Please _____use Mr,Mrs,Ms or Miss before their first names.a,mustn't b.don't c.can't d,be not. Thoughts of you I don't you know,but you must be happy.Really,you must be happy! I always believe that never left ,it must be you! i always believe that never left it must be you