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问题 It was a long time until...还是It was a long time be

A man escaped from the prison last night. It was a long time ____ the guards discovered what had happened. A. before   B. until   C. since   D. likely 答案为before，请问可否选择until？

问题 that与it用作替代词的区别问题

我知道代词 it 与 one 的区别：it表特指，相当于“the+名词”，表示与前面提到的事物为同一物；one表泛指，相当于“a+名词”，表示与前面提到的人或事物为同类，但并非同一。但是，that与it用作代词时如何区分呢？有人说这两...

问题 句中的that it 是什么用法？

 It got so bad that he had other employees calling him telling him that their colleagues were slacking o! so much that it they couldn’t do their own jobs.这个地方的that it 是个什么用法？

问题 which it is expected定语从句

They rolled out a product which it is expected would be beneficial for the blind.请问老师，it is expected是嵌入式定语从句吗？which引导的定语从句做it is expected的实际主语？

问题 it 指的是什么

Another meaning of “china” is ceramics. Oh，that sounds interesting. Why is that？There are some stories about it.这里的it指什么呢？

问题 It is...that与It is...since的用法区别

It was many years ago _____ I met her in London. A.since        B.when       C.that       D.whichIt is many years _____ we met last in London.A.since ...

问题 It goes without saying that从句

It goes without saying that if someone has lung problems they should not smoke.请问老师It goes without saying that的that是什么从句？it是形式主语吗？

问题 ​如何理解动词 -ing 表式在句中的成分

...句中singing及后面的从句 singing作为 分词 为 状语）There is even a "Viva Obama" video featuring a group of mariachis singing the candidate's praises.（此句中的singing及后面的从句 singing作为 分词 为 定语 修饰前面的名词）During the mess...

问题 do good与do well的用法及区别

_____ is hard is to do good all one’s life and never do anything bad.这句话中 good 放在动词 do 的后面不太符合语法规则，应该是 well 才对吧？谢谢！

问题 some types of 后面的名词为什么用单数

Some types of camel have two humps and others have one.请问，这里的 camel 为什么用单数？它不是可数名词吗？因为 some types of 后面的名词可以用复数吗？谢谢！

问题 下句中“using a counterbalance system”是定语还是状语？

Owners push a button, and the rooms fold out like an accordion using a counterbalance system.请问老师，绿色部分是前面an accordion的定语还是句子的状语？谢谢老师的回答。

问题 now的词性与用法

...o shut my eyes in maybe seventy-two hours. Very soon now I'd doze off, and the instant that happened they'd jump on the little water that was left. 这句中 very soon now 的 now 还是副词“现在”的意思吗? 译文是我现在很快要打盹了。

问题 to last 和 for hours 都是状语吗

The coronation seemed to last for hours, but I managed to say and do all the right things．老师，to last 和 for hours 都是状语吗，两者都是修饰谓语动词 seem 吗？

问题 as never before中的as是作什么成分

We customize the news we consume and the political beliefs we're exposed to as never before.as never before中的as是什么词性？as never before “从所未有过的”是作状语吗？

问题 usage前面用at还是on

To navigate to the declaration of a class, method or variable used somewhere in the code, position the caret at the usage and press Ctrl+B. You can also click the mouse on usages with the Ctrl key pressed to jump to declarations.请教一下，usage前面为什么一下用at，一下用on？