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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！

问题 关于 feel sorry for / about 的用法疑问

老师好，The girl seemed to feel sorry for him.首先 seem 与 feel 我认为在本句中都做系动词，seem 的表语是介词短语 to feel sorry for him，而 feel 的表语是形容词 sorry，这样理解是否正确？feel sorry for sb 对某人感到遗憾feel sorry about sth 对某事...

问题 It’s important that...后面的从句必须要用虚拟语气吗

It’s important that he ______ present at the meeting.填 (should) be 肯定是对的，但如果填 is 呢？填 will be 呢？也都对吗？

问题 现在分词一般式与完成式的用法疑问

They hoped he would own up to having told the lie.I think that's what he said, but I can't swear to having heard him correctly.这两句话中的tell和hear为什么要用现在完成时？不能直接就telling, hearing吗？是不是在介词后面的动词只能用现在完成时表示过...

问题 Legend has it that...是什么句式（it是形式宾语吗）

Legend has it that the Dragon Boat Festival originated long, long ago. 传说龙舟节是很久很久以前开始的。请问专家，这是什么句式？如何分析？it是形式宾语吗？

问题 怎么区分while引导的是时间状语从句还是条件状语从句

怎么区分 while 引导的是时间状语从句还是条件状语从句？Some people waste food while others haven’t enough.一些人糟蹋食物而另一些人却食不果腹。We must strike while the iron is hot.我们要趁热打铁。

问题 结构分析：I Just came back last Sunday.

...么结构？介宾？状语？能不能列举所有情况？3.He failed in the exam.是主谓介宾还是主谓状语结构？

问题 for which定语从句成分分析，求解

Aluminum（铝） remained unknown until the 19th century，because nowhere in nature is it found free，owing to its always being combined with other elements，most commonly with oxygen，for which it has a strong affinity.（亲和力）最后一句为什么不直接for it has...变成原因状...

问题 连词和状语从句可以构成插入语吗

Iconoclasts, either because they were born that way or through learning, have found ways to work around the perceptual shortcuts that plague most people.                               阴影部分：是插入语吗？还是状语从句啊？              ...

问题 关于过去分词作定语的与谓语的时间先后问题

老师您好，我有一个疑问，比如：The broken cup is mine.这个broken表被动、完成，是先于谓语is的。但是举个例子，He faced with so many difficulties looks worried，这个faced with so many difficulties是he的定语，那么faced with so many difficulties不是一种...