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问题 be key to doing sth的用法疑问

中英的政府工作报告里有一句:Reform is key to modernizing agriculture.想问一下这里为什么是ing。动名词？还是to做介词？还是神马？求解答，谢谢！

问题 为何确认性宾补有时可以省略to be

请教老师：确认性宾补必须由不定式充当是否适用于所有可接宾补的动词？为何 you can call him Tom这个确认性宾补不是不定式？

问题 There be句型中的no...but...结构

There was no single movement of hers but was beautiful.她没有一个动作不是美丽的。可以理解句意，但是自己写不出来o(*￣︶￣*)o所以特来学习句子分析，以及这句话都省略了什么成分。

问题 it's really one of God's good ones中的ones如何理解

The stars...it's really one of God's good ones.这里 good 是不是形容词？ones 又是指什么？这句话是什么意思？

问题 I didn't see it 和 I haven't seen it

—Excuse me, look at the sigh "NO PHOTOS"!—Oh, sorry. I ________ it.答案是一般过去时，想知道为什么不填现在完成时，现在完成时不是有事件在不久前刚发生这种用法吗？

问题 ​Do you need to be an expert to do sth句式对吗

Do you need to be an expert to see the issue?请帮我看下这句话有没有语法上的错误。

问题 it's easy to make friends you are rich是什么结构

书上看到一句话 it's easy to make friends you are rich,but a friend in need is a friend indeed.it's easy to make friends you are rich是什么结构，you are rich是定语吗？定语不是只能修饰名词么，看它在这句话里不像是修饰friends的，但是定语可以...

问题 这个it应该是指Pollution吧

...an overpopulated, over industrialized planet. When you come to think about it, there are only four ways you can deal with rubbish: dump it, burn it, turn it into something you can use again, attempt to produce less of it. We keep trying all four methods, but the sheer volume of rubbish we produce wo...

问题 “amounts of 不可数名词”作主语谓语动词用单数还是复数

The amounts of money being lost by the company ______ enough to make it a metaphor for an industry that was teetering.A. was B. were“amounts of +不可数名词”作主语谓语动词用单数还是复数？比如本题，从amounts 来看，它是复数，但从money来看，它又不...

问题 I don't think you judged...的反意疑问句的问题

You seem to be dissatisfied with your present post，I don't think you judged your ability objectively when you applied for it,_____ you？A.did    B.don't     C.do       D.didn't

问题 Don't get me wrong, I loved being married, been th

Don't get me wrong, I loved being married, been there four times.这句话中been前面是不是省略了have？如果是为什么能这样省略？

问题 resolve to do sth.和be resolved to do sth. 的区别

牛津词典中看到两个例句：He resolved not to tell her the truth.I was resolved not to see him.请问 resolved to do sth 和 be resolved to do sth 有区别吗？

问题 be 加 过去分词 加 by/with 的区别

...有crammed by这种搭配；这就引出了一个问题，with 和 by 在 be加过去分词的用法里对中文来说好像没什么差别（如上文的obsessed），那在英语思维里又作何区分呢？另外，在被动语态里的过去分词就词性而言，是形容词吗？

问题 She is eligible to be (elected) president.为什么president前面没有a？

韦氏高阶词典上，eligible有这样一个例句She is eligible to be (elected) president.她有资格竞选总统。为什么president前面没有a？

问题 为什么这里填is believed to have been而不是is believed to be

1. 我觉得这里填is believed to be也非常可以啊，为什么一定要用完成体呢？2. 就是如果be动词的完成体have been后面没有跟持续时间，我就不是很能理解这种用法的意思。就是比如：She has been a teacher for ten years.这种后面跟了持续时间...