请教英文"are" "is" "be" 的用法句子：“who are you ”“ who is you ”“ who be you” 哪句正确 .那么 who are William 还是 who is William 正确呢？在什么情况下，“who are William”这句是正确的呢？

请教英文are is be 的用法句子：“who are you ”“ who is you ”“ who be you” 哪句正确 .那么 who are William 还是 who is William 正确呢？在什么情况下，“who are William”这句是正确的呢？ 语法选择题请教__your brother at home?A,Am B,Are C,Is D,be 请教一段英文合同的翻译,急用,谢谢!In the event that asum is expressed to be payable as liquidated damages, the Parties agree thatsuch sum is fair and reasonable in the circumstances where such liquidateddamages are payable, and represen 请教一个语法知识点：There ____a meeting tomorrow afternoon.A.will be B.will have C.are going to be D.is going to haveThere is going to _____a meeting tomorrow.A.be B.have C.will be D.has 桌上有什么?翻译为英文是什么be动词is能不能换成are be 是 is am are 请教英文名言的中译.Getting what you go after is success; but liking it while you are getting it is happiness. BERTHA DAMON 请教这题英语选择题为什么会选CThis is a very difficult operation. It is essential that you _____ for emergency.A. are to be preparedB. would preparedC. be preparedD. must be prepared 这句话怎么翻译,请教高手!Parts made of steel purchased to this specification are not to be used when welding is part of the assemble procedure. 英语语法请教 you are rubbishyou are rubbish为什么这里用are 而不是is呢?求教 英文请教when are we going to 和 when will we be there请问两句语法都对吗?还有就是when后面我好像只会加will.when 后面是are这是什么语法知识里的?或者是什么结构? am is are什么时候用原形be be动词除了is,are还有什么 be动词有那些is,am,are 什么时候用be is are am am is are是be动词吗? 什么时候用be,而不是am,is,are 就是be,is,am.are的区别