Let's have a talk和They are having a conversation.为什么一个用have一个用having?

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• 请教一道非谓语动词的题The old couple returned to their hometown ten years later,_____ everything completely changed there.A.found B.having found C.to have found D.to find这题正确答案是D,但是我一直想填finding,但是选项里没有.1,为什么是D,老夫妇回到家乡,发现一切都变了,是否因为发现变化的动作发生在回到家乡以后,所以用不定式表示先后呢?我记得非谓语动词里,有一个“紧接着先后发生”,用ing也是靠谱的.2,如果选项里有finding,选的话算不算对.
• she has to clean all the furniture in all the bedrooms in two hours这句话当中的furniture和bedrooms 为什么一个要加s一个不用加s的?The young students like dickens' and Mark Twain's novels very much这句话当中的人名dickens'和Mark Twain's 的s用法为什么不一样的?I have a lot of work to do 为什么要用a lot of 用many work 不行吗?还有就是那个work后面不能加s的?
• 用所给词的适当形式填空1:I love eating Chinese food.Let's go (have) it.翻译下列句子.(将这些汉语翻译成英语)1:操场上一个人也没有,非常安静.2:用这钱我们可以买几听可乐?---一听也买不到.3:你能带他们去购物大厦吗?4:你想点什么菜?---鱼和大白菜.5:我们城市里有许多不同种类的超市.6:冰箱里也许没有食物了.就这么多
• 关于hope从句I hope you're having a good time.这是完形填空中的一个句子,语境中的意思是将来时,参考答案说这里是用现在进行时表将来时,为什么?可以用will have
• 【求教】两道英语选择!1.（ ）58 people were reported ___ in a fire accident which occurred on November 15,2010 in Shanghai.A.to be killed B.having been killed C.having killed D.to have been killed为什么不是A?November 15,2010 难道不是一个顺时吗?2.( )Olympics,along with other international competitions,___ as an excellent platform for countries all over the world to enhance their relationships.A.is served B.serves C.are served D.serve①.“along with”不应该是根据前者么?②.在这里用主动语态怎么解释?"along
• 独立主格结构练习题1.Her money ___ stolen,she could not buy a ticket for her home.2.the speech___,a lively discussion started.第一个是:having been第二个是:have been delivered我的问题就是用having和have有什么区别?书上说独立主格结构中动作先于谓语用完成时 但是为什么有having和have这两种形式呢?having和have有什么区别?什么时候应该用什么?
• 一.which class / school are you in?为什么要加In二.-（ ）-Yes ,Thank you.1.I see your dogs.2.Your passport is there.3.look after your passport.4.It's your passport.三.in the wall,on the wall 有什么区别?各举一个例子四.It's a new pencil.it look ( )yours.1.like 2.the same 五.-How many pictures are there on the wall?-( ),They are three1.Let me ask 2.let me see 3.let me count them六.put away 是“把东西放回原位”的意思吗?可以翻译成“把.七.Mr.and Mrs.Black ( )a big house.1.have 2.has Mr.and Mrs.Black 可以用
• after having taken off,the plane flew low over the cityafter having taken off,the plane flew low over the city.1整个句子是个什么句子或句型?2句中的after having taken off,take为什么用过去分词?我个人乱说哦：）别介意哦 就是用过去分词taken话那having就应该用have了构成一个现在完成时的句子.3如果having算动名词的话那taken应该是用原形take吧?备注：要说一下句子是正确的,新概念的,当然,上面问题2和问题3我认为的认为肯定是不对的.我们进入焦点，一楼朋友说是此句一个现在完成时态，三楼朋友说是过去完成时，我们在讨论一下。
• China became the 143rd member of the WTO in 2001,thus(realizing)its 15-year wish .如题,为什么不可以用having realized?晤,还有一个,Jose came to borrow my skiing boards yesterday,but it happened that I （lent ）them out.为什么不用have lent?
• （）in the queue for half an hour,tom sud denly realized that he had left his wallet at homea:To wait b:Have waited c:Having waited d:To have waited为什么要用having?b,由tom做的动作所以用ing形式?表主动?、请一个一个的解释
• ( )2.They ________ a Music lesson.A.having B.are having C.are have
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