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问题 to作介词的问题（有些形容词后接to doing，但同根名词后面却接不定式）

例如 be commited to doing sth这里to是介词，那么为什么 he made a commitment to help the poor.   同根出来的commitment，为什么这句话就要用不定式呢？

问题 有关虚拟语气的选择题

...虚拟语气的选择题，请问怎么选？If I hadn't stood under the ladder to catch you when you fell, you ______ now.A. wouldn't be smiling                            B. couldn't have smiledC. won't smile&nbs...

问题 新概念英语第二册78课一处自己的疑问。

For how long the writer give up smoking?我的疑问1：give up是短暂终结性动词 一般体加for持续状语动词 这是什么语法知识？我的疑问2：为什么不是完成体？这里的作者用意是表达放弃了吸烟之后的状态持续了多久。因为终结动词的完成体...

问题 and so do I 可以用在宾语为否定式的句子后面吗

...obody here, and so do I.He made no answer, and so did I.He said nothing at the meeting, and so did I.这样的句子对吗？还是要改为 and neither do I, and neither did I 呢？谢谢专家老师！

问题 take（花费）可用哪些成分作主语

take表示“花费”时，通常用于it takes sb some time to do sth，请问take除用于这个句式外，还可用于哪些句式，可用哪些成分作主语？

问题 come full force的用法

So you can let it come full force.这句话中的full force与come什么关系？什么时候动词后面可以加名词表示什么？

问题 数字与金钱

老师好 Nice suit,Gary. How much did that set you back? Should have been five.But I got it for two. Mr. Peacock. Uncle jack knew a guy who gave us a work 我想问的是这里面的five和two肯定不是实际的金钱价格，那么指代的是什么呢

问题 When I was a lad his age中的his age是作为什么成分

When I was a lad his age I would laugh at the strangest things. 我是他那样的小毛孩时，莫明其妙地就会发笑。请教这句话中的【his age】是作为什么成分呢？ 

问题 are created equal 中 equal 是形容词作什么成分呢

Four score and seven years ago our fathers brought forth on this continent, a new nation, conceived in Liberty, and dedicated to the proposition that all men are created equal.Now we are engaged in a great civil war, testing whether that nation or any nation so conceived and so dedicated, can long e...

问题 Olympic Games的代词用单数还是复数

Olympic Games 是复数吧，如果用代词来代替它呢？用单数 it 还是复数 they？

问题 where you are 是什么从句

It must be very late where you are.请问这个 where you are 是什么从句？句子是什么意思？谢谢！

问题 what后面的谓语一定是单数吗

We will find it difficult to know what are our limitations and problems.我这里用are对吗？

问题 过去完成时还是一般过去时

Because she buried herself in books, she didn't notice it was raining outside. 请问because从句里边，需要改成过去完成时吗？

问题 强调句中强调宾语可以用主格么

今天翻看语法书有一个例句：It was she whom we are talking about.请问强调句中，强调宾语可以用主格？

问题 get sth doing与get sth did的区别

...nbsp;mornings, so I have to try _______ the radiatorwith some hot water.A.run; to fill     B.running; filling  C.running; to fill     D.ran; filling为什...