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问题 had been used to do是怎么回事

....It was noticed that they wagged their tails to him in the same way as the other dogs had been used to do to Mr. Jones. 和上句一样had been无法理解。 其次，本句的had been如果按被动语态来理解，按前面as比较的对象应该是tails才对吧，那么dogs是不是该变成...

问题 后置定语的分析

老师好：请教一下。In my hometown, there are two mountains and many roads connected them.这句话是我自己模仿着别的句子写成的，不知道对不对。如果对的话，那么问题是，这里为什么用过去分词短语 connected them，而不是现在分词短语？

问题 in加现在分词

请教老师们：In raising my children，I have lost my mind but found my soul. 我在我的书上看到主句（I have......）作为结果出现（as a result），还是作为同时when呢？

问题 关于不定式的用法

如果表达我要减头发，是I have my hair cut还是i have my hair to be cut?如果是后者，此时不定式的to不能省略对吗？

问题 all在本题中的用法

They chose（  ）among the things that the shopkeeper introduced because they didn't need (  )of them.A.nothing, allB.nothing, any请问老师这题二空选All 为什么不行呢？感谢老师。

问题 关于情态动词的虚拟的时态问题

I could have come,but my mother was ill.在这句话中，could have come在这里等于I didn't come yesterday.意“本可以来”，was ill是与could have come，“本可以来（过去没来）”同时的行为我们老师说，情态动词的虚拟可以看作为一般过去时，想请问...

问题 so do I

请问老师，以下哪个选项不能回答“Jack has a new dictionary？”A. So I do  B. So he does C. So has he D. So I have具体是什么原因呢？谢谢您！

问题 with the result that...句式分析

赵振才语法书上说with the result that=介词+名词+定语从句的结构，但是起着从属连词的作用。例如:I was in the bath, with the result that I didn't hear the telephone.但我却认为with the result that=介词+名词+同位语从句，不知对否？如果是定语从...

问题 动名词的语法分析

I heard of I having been chosen to be the coach of the team.句中having been chosen和to be语法上做什么成分。

问题 句中on的用法

...sections of Queensland, New South Wales, Victoria and South Australia that have no Covid-19 cases are posing major challenges on agricultural supply chains. On agricultural supply chains 中的on 为什么不用 to? 一般不是用pose...to...吗？用on 和 to有什么差别呢？谢谢回答

问题 companion to的搭配

Scale also helps when it comes to an ever more popular companion to free shipping: free returnscompanion to我查了下朗文词典，有这个解释 one of a pair of things that go together or can be used together。红色的这个意思是否就是对应这个解释谢谢

问题 请教老师，It appears后面的从句，是虚拟语气吗？

...？）(certain句式)It appears certain that what we've seen here will have repercussions for many years.It appears certain the latter half of the preceding statement will be met and then some.It appears certain that our team will win.

问题 when从句是表语从句还是状语从句

Gratitude is when you feel appreciation for people and things.请问老师：when引导的从句是做表语从句，还是状语从句？怎么判断？

问题 一个复杂句子结构的分析（涉及and where）

Don't forget what to do and where to go you have promised yourself, no matter how difficult or far it is.疑问：1. 为什么用 and 连接啊 where 本身不就是连词么？ 没看懂结构？2. you have promised yourself不应该是在两个 to do 和 to go 前面的么？为什么拿到后...

问题 句子理解

Legislation is moving through the House that would save USPS an estimated $28.6 billion over five years, which could help pay for new vehicles, among other survival measures.请问老师among...这个状语应该如何理解？