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问题 主句是过去时 宾语从句为什么不用过去完成时

...，从句的时态要后退，下面的句子 我不能理解：I checked the orders instantly. That’s when we realized we made a mistake.犯错误这个动作发生在 realized 之前，为什么不用过去完成时？我了解主句是said，told 那种，但是像 realized 这种，如何...

问题 be it time, energy or help怎么理解

Be sensitive to how much your friend can and can't offer you--be it time, energy, or help -- and don't step over the line.请问这个句子里的be it time, energy or help怎么理解？这是一个什么语法点？感谢解答！

问题 及物动词+宾语+副词/介词 结构里的副词/介词做什么成分

take+sb/sth + adv./prep. We'll take the matter forward at our next meetingcarry something + adv./prep. I never carry much money on me.请问老师加粗部分是作状语还是补语？是结合具体句子充当成分不同还是这个结构里充当固定成分？

问题 关于过去式和完成时的问题（详见问题描述）

A: I hear you _____(get) lost on your way to the hotel.B: I don’t know how I did it. I have been here a million times.为什么这里要填 got 而不填写 have got？题目来自于《英语语法新思维（中）》P162

问题 代词it可以代替动词或动词短语吗

...替名词或代词（以及相当于名词或代词的词）。He banded the box before mailing it. 邮寄前他把盒子用带子捆扎好。Leave that vase alone or you’ll break it. 不要动那个花瓶，要不你会把它打了的。This matter is finished, so please don’t refer to it. ...

问题 动词时态选择题(涉及be to do sth)

I just saw John at the bookstore. I didn't think he ______ back until tomorrow.A.will come     B.is coming    C.was to come    D.is to come

问题 shall need 与 should need 用法辨析

If your car______any attention during the first 12 months, take it to an authorized dealer.A. shall need  B.should need这题练习题答案为A, 但网上有许多人给的答案是B。我个人比较倾向于A 感觉并不是虚拟语气，因为车子在头12个月也是有可能需要被“...

问题 为什么against time是副词短语而不是介词短语

It was a real race ______ time to get the project done. Luckily,we made it. A. over B. by C. for D. against 答案给出的解释是against是副词短语，为什么不是介词短语啊?感谢老师的回答！

问题 is to do/be done 是否一样？

I feel it is your husband who______ for the spoiled child.a. is to blame   b. is going to blame  c) is to be blamed   d) should blame 请教老师， a和c 选项都正确，是吗？为什么？     谢谢老师解答。

问题 主语为动名词的句子改为一般疑问句时是否采用形式主语it

例如：Setting the matter is our prime objective. 如果这个句子采用一般疑问句结构，必须采用形式主语吗？

问题 to communicating with others在这里是做什么成分

The Internet also provides us with a cheap alternative to communicating with others.这句中的to communicating with others是做什么成分？我把它理解为目的状语对吗？to coummunicating能否用不定式的形式即to coummunicate来代替呢

问题 这里的it是指前面整句话还是名次problem呢

Heavy schoolbags have been a serious problem for a long time. But the e-schoolbag will work it out.这里的it是指前面这句话吧，长时间都是严重的问题。

问题 为什么 everybody后面不能用 his or her 来指代

PEU第三版有这样一句：When everybody had finished eating, the waiters took away their plates. 每个人都吃完了以后，服务员就把他们的盘子拿走了。(不能说：…his or her plate.)

问题 when and where算单数吗？

Professor James will give us a lecture on the Western culture, but when and where ____ yet.(2007 浙江) A. hasn’t been decided B. haven’t decided     C. isn’t being decided D. aren’t decided

问题 else可用于哪些疑问词之后作修饰语

...么吗?Where else did you go? 你还到什么地方去了?Who else was at the party? 聚会上还有谁?请问，除了 what, where, who 之外，还有哪些疑问词也可后接 else? 谢谢！