Did you ever...和Have you ever...有什么区别?什么时候用Did you ever...什么时候用Have you ever...

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• 一个问句里 什么时候用DO、BE动词、HAVE比如：_____ you ______ your honework now?用do还是 have还是 are?为什么?什么时候用?(不要长篇大论型文章 语言简洁明了最好,____the bus____just now?yes,but it has left那这个呢？如果填DID那后面的HAS又怎么解释呢？
• why have you decided to choose our hotel?和why did you decide to choose our hotel 有区别么?用did是不是错了.还有帮我划出一下这个句子的成分you know when I wanted to be with you forever.尤其是when 后面的成分,want to be 是作谓语么 with you 是状语?求详解
• After the exam,we'll have﹍﹎holiday.A two weeks B two-weeks C.two weeks' D.two week's 选C 为什么-Did you have a good time during the ____summer holiday?-sure.We relaxed ourselves and did many things we like.A.two months B.two month C.two-month D.two month's 选C两道题有什么区别?为什么第一题用two weeks' 第二题用two-month?为什么第二题的two-month 不加's?
• 几个英语时态和语法问题always可以在过去时态中使用吗?带can和have的反意疑问句,翻译时用do反,还是用本身词反but+句子,或then+句子是英语5大句型的那种sb used to be+句子,这是主系表,还是其它的句型结构;he is on the +物体,这里面表语是什么?use to be句型中有be存在,为什么,疑问时用did呢?为什么这个时Did you use to afraid dark?用did.这个用 Are you still afraid of dark?用are.后者有动词,不用do呢?
• Did you ever...和Have you ever...有什么区别?什么时候用Did you ever...什么时候用Have you ever...
• Why have you come to China?你为什么要来中国呢?这里为什么要用have come ,而不说Why did you come to china?或Why do you come to China?这样用有什么作用,有什么区别,为什么这么用?请帮忙从语法角度深入分析一下.请那些没看清我的问题的朋友或者胡乱答的朋友不懂不要随意回答,
• 关于虚拟语气的句子辨析.请看下面三组句子：1.If I have money,I will buy a car.If I could have money,I would buy a car.2.If I am rich,I will help you.If I were rich,I would help you.3.If I have time tomorrow,I will go.If I should have time tomorrow,I will go.请问这三组句子有什么区别?又分别在什么情境下使用?什么时候用虚拟语气,什么时候用一般现在时的条件句?
• where have you been的答句用现在完成时还是过去式?【急,我的理解是：where have you been 强调状态和结果where did you go 强调过程和动作where were you 强调地点、时间那么在考试中应该如何分辨,什么时候用哪一个呢?我以前觉得是看答句来判断问句的但昨天做到一题I called you just now,______?I was at school.我觉得应该填where were you,但老师说是where have you been 是不是where have you been 的答句也可以是一般过去时?那又该怎么分辨?觉得好混乱【明天要考试.
• --She couldn't have done that sort of thing.--________What she did with what you did,I consider her more sensible.Besides,it's none of your business.Get down to ____your lessons.A.Compared;doingB.Comparing;doC.Comparing;doingD.Compared;doget down to doing 为什么第一空用comparing?什么时候用compared?
• have变疑问句的问题含有have的句子,变疑问句,什么时候用do 什么时候吧have放句首呢?之前知道的是have当助动词时放到句首,当普通动词时用DO那比如,“你吃过午饭了么?”为什么有2种提问呢,Did you have your lunch?Have you had your lunch?
• 怎么用have you造句have you done your hobby?你有找到你的爱好吗?when did you have your hobby?你什么时候有了爱好?我不知道这句话是否正确
• Have you ever seen snow?Many people in the world have not.Some countries ever have snow; some have only a little on the tops of very high mountains.In the north of England,there is quite a lot of snow every winter,but in the south of England,there is usually little.When a student from a warm country comes to England in autumn for the first time,he feels cold at first.There are often dark clouds,grey sky and cold rain in England in autumn.And most stud