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问题 about four metres long 是什么状语

About four metres long, the room served as a small reception hall for important visitors .问：这句中About four metres long，在这句中应该被称作主句的什么状语？

问题 英语谚语的谓语动词的时态

...的谓语动词都是一般现在时，但是发现：1) Curiosity killed the cat为什么这句谚语谓语动词是过去式killed，而不是一般时kills呢？2) Accidents will happen而这句谚语，谓语动词却又使用了将来时？以上2句，都没有使用一般现在时，究竟是...

问题 help them 与 help themselves 的区别

The villagers needed someone to help______ (they) change their minds and learn new techniques.横线处答案是them，想知道为什么不填反身代词themselves?

问题 its first atom bomb中的its修饰哪个词

China exploded its first atom bomb in October 1964.老师，这里的 its 是作形容词性物主代词修饰定语 first，我这么理解正确吗？谢谢。

问题 have...done例句分析（涉及done是定语还是宾语补语）

She had her arm broken in an accident.例句中的broken是前面名词her arm的定语还是宾语补语呢？谢谢老师的回答。

问题 一般过去时与过去完成时的用法疑问

They had moved there soon after Sir Charles had begun to live in Baskerville Hall.老师，用 began 替代 had begun 一样吗？为什么用过去完成时，从句用过去式换成过去完成式一样吗？

问题 表示曾到过某地必须用 have been to 吗

表示曾到过某地必须用 have been to 吗？用 have been in (at) somewhere 可以吗？

问题 名词性从句引导词的选择疑问

When we arrived in ______ our apartment was supposed to be, all I could see was a school.A. where           B. what         C. whether     D. which这道题选B，但是为什么A不行呢？宾语从句中，缺表语，但是where也可以作表语呀，而且意思上也通...

问题 Born a German national这里born是什么用法

Born a German national, Frank lost her citizenship in 1941.born是及物动词，翻译成出生吗?那翻译是作为一个德国公民而出生吗？

问题 with的用法疑问

看到一句话，…earth's biodiversity is expensive in nature,an estimated 1.5 million species of plants,animals,bacterias,fungi and others have been catalogued with potentially millions.我在字典里查了介词with的各个词条解释，感觉没有适合解释这句话里with使用的。请...

问题 Can Have Done是什么意思

https://www.forbes.com/sites/investor/2010/12/14/outsourcers-growth-may-slow-as-indias-wages-rise/?sh=37497e6547c0这是我在App电子词典中查到的例句，之前没有见过can可以这样搭配的，这里是表示推测吗？这里会不会是find sth done只是个巧合而已？

问题 情态动词使用辨析

Sir, you (   ) be sitting in this waiting room. It is for women and children only.A.oughtn’t toB.can'tC.won’tD.needn’t这道题很有意思，书上的答案是B. can't, 而网上我看了一下，都说选A. 另外，网上还有一种版本是把oughtn't to 换成了 shouldn't。所以，...

问题 more在此句的用法

I try to talk to her in a more respectful way, more as an adult type of teenager rather than a childish type of teenager.请问老师后半部分的more as…怎么理解，有什么语法知识点吗？是对前面的way的补充解释吗？我理解成中文就是：我尝试更加尊重地和她...

问题 twice as...as表倍数比较的用法

In 1992 twice as many fourth babies were boys as were girl？老师，这句第二个as还是联系用法吗？As many girls as he knew were teachers.这句第二个as是关系代词。那么像这两用法怎么区别呢？

问题 还要请教Teacherliu等专家现在完成时在语境中的用法

...ve you had??B: I had burgers.  还是 I have had burgers.?A: Who made them for you? 还是 Who has made them for you??B: Mother.第2组 A: He has got to Australia.B: How has he got there? 还是 How did he get there？A: He has taken the plane.还是 He took the plane?B: Who...