we are to be 英语里总是出现这类词应当怎么理解

we are to be 英语里总是出现这类词应当怎么理解 we are meant to be we are what we pretend to be ..... 求英语达人回答我 很多句子中出现的这个to be+xx 是什么用法!There is going to be a crowdThe letter is to be handed to him in personIf we are to be there before ten,we’ll have to go now这些句子中的to be 是怎么回事啊? 英语：We are very happy to be with each other.这句话中的to ..we are meant to be together we are happy to be working是什么意思 we,are going to be 11 We are meant to be suposed to be意思? 英语句子里可以出现be 英语填空：The teacher tells us to be careful when we are doing the___(实验). We are very happy to be very sweet这句英语是什么意思? 英语翻译we are candies which are so sweet to be sorrowfulorwe are sweet,so sweet we are to be sorrowful All we have to do_____ learn by heart.里填那个（A.is to B.to C.are to D.be to) 英语试着用韵词写六句小诗 We want to be we are going to和we are going to be的区别 一道小学六年级英语题写一个假期里的计划,写的现实一点I want to go to **.It is**there.I am going to go there with**.We are going to go there by**.I’m going to**,**.I’m going to take**,**with me.It will be fun.We will have a you konw we are meant to be together为什么要用are meant to be?兄弟