—Must we come to school at six tomorrow? —I am afraid you __A mustn't B needn't C must D can't答案是C，我想怎么为什么（各路高手速度很快，我的问题补充提问一下）。想知道其他答案为什么不能选。谢谢啦

We must study hard to make our dreams__________(come)true. you must come to dinner we must work hard to make our dream____(come）true She went (b ) after an accident.We must come to a (d )about what to do next tomorrow. You must come to school at seven. classes beging in .we must come back to school again .beging in后面有个空，要填月份 when l got married we must come to oh!because l see you have a sense of secu Though we have been successful in our work so far,we must be prepared to __difficult problems inthe days to come. what is going to come must come.是什么意思啊? Must we come to school at 7:00? No, you__________.A. mustn't B.can't C. may not D.don't have to 选择什么?为什么? we look forward to _(see) the great manl'd like you _(read) the letter for mewe arehappy _(be)here with you it's easy_(get) to my home by undergroundtgere are many tall _(build) around the beautiful lake_it_(tain)tomorrow?; hope nottry _(come) to sch 英语翻译lf we are going to accomplish anything in life,let us not forget that we must persevere.lf we are to learn our lessons well in school,we must be diligent and not give up whenever we come to anything difficult.We shall find many of our les Tom is a student.He's 13 years old 同义句 Tom is a student___ ____He likes Chinese better than mathsHe___Chinese ____ maths1.We must ask a doctor to come at once.We must _______ ______a doctor ____ ______. What must we have to keep healthy? We must be l------- to the school ____Baby 、 We must learn to forget Even in we must learn to smile, Why must we go to bed?