问题 have been to 和 have gone to 的区别

句子：I am sure you've all been to the museum.问题：“be to+地点”我感觉这种搭配很少看到，一般是看到别的介词短语作表语，请问这里的“to+地点”怎么理解，to是什么意思？如果这里改成have gone to museum，意思会不会变呢？（备注...

问题 mind doing sth 与 mind having done sth

He didn't mind getting the job.其中的 mind doing sth 可以像 regret, remember, forget 一样换成 mind having done sth吗？（在肯定句和疑问句中）

问题 do和can的一般疑问句的区别

问题 what is what you said对不对

你所说的是什么？What is what you said? 还是What you said is what？这样两种翻译对不对？为什么？然后What is it what you said宾语外置能这样用在特殊疑问句中吗？为什么？

问题 be busy (in) doing sth 去掉sth也是可以吗

请问专家：be busy (in) doing sth   去掉sth也是可以的吗?I am so busy studying.

问题 有support doing sth这种结构用法吗

...upported rejoining agreements: 支持做某事，是否可以说成support doing sth ?

问题 关于冠词的省略问题（详细）

...rls did well in their exam.那么以下的句子是不是冠词的省略：You can use something to say that (the description or amount) that you are giving is not exact. If you say that (a person or thing) is something or is really something.可以的话，希望能有完整的资料。 在此先...

问题 in the way you can省略

 At the heart of economics is a belief in the virtues of open competition as a way of using the resources you have in the most efficient way you can.请问in the way you can省略了什么内容？

问题 must与have to的一道题

Today is Sunday, but you _____ get up now.A. must    B. have to出题人的参考答案是must,称是说话人的命令。我觉得在没有更完整的语境下，两个都可以，这种习题没什么价值。盼专家老师给予详实的解析。

问题 “to filter out”中out词性

...p; 有一个猜想不知道对不对，请各位老师指正。句中是to do不定式做主语，因此可以把to后的filter out看成整体，相当于动词。

问题 if虚拟条件句主句从句不一致相关问题( if I were you, if I had been you)

我在看文章和做题时遇到了类似下面的例句：1. if I were you, I would have done something.2.If she could sew, she would have made a shirt我的问题是：1.从句为什么可以使用与现在事实相反呢，我觉得从句与过去事实相反更容易理解一些，即if I had b...

问题 非谓语结构

...合作。想问一下，画线的部分是否表修饰部分为非谓语to do，learn为谓语动词？后部分可否写成：learn to be thanked, possessed responsibilites,and cooperated with others. 如何判断后面是宾语而不是主谓结构？

问题 主动表被动

I sent you 100 dollars today,the rest ____ in a year.A.to follow  B.follow C.being followed答案给的to follow，请问为什么不用to be followed ？是不是因为能够成I will follow the rest 这种情况？

问题 start sb doing是宾补结构还是动名词复合结构

The thought of grandma started my tears trickling. The news started me thinking.请问老师，start sb doing是宾补结构还是动名词复合结构!

问题 文章开头do so含义

When I left for college, I did so with the conviction that my "real" friends were my high school friends.请问，句中did so指代什么？