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问题 the several of用法疑问

Over here in this section we have the several of the iPhones. 在文章中看到，请问老师the several of这个表达有吗？感觉这个the多余的？

问题 of things 放在句首的用法

of things you need to do？这里的of things和后面的句子是什么结构呢

问题 这个because of后面为什么接一个句子呢

老师您好！We said nothing about it,because of his wife's being here.在http://www.yygrammar.com/Article/201108/2383.html 说道because of后接名词、代词、动名词和 what 从句（不能是 that 从句或者没有引导词的从句）。本句中 because of 后相当于 his wif...

问题 take care of 有“负责”的意思吗

My brothers and sisters all went to help in the farm field and left me taking care of the clothes-washing.这句中的 take care of 不是“照顾”的意思吧，好像应该理解为“负责”。请问一下，take care of 有这样的用法吗？

问题 为什么是of不是with

...n goes into a shop to buy a new dress, she is self-evidently in possession of the information that the market researcher may want.in possession of 拥有是固定搭配，of是空着要填的，我会经常填成with，这里的介词有什么不同呢？要如何理解和记忆，谢谢。

问题 of结构里名词的单复数

老师好！A of B 这种结构中，A的单复数是否需要根据B发生变化？如：The proportion of aging populatiom in X and Y is very high. 这里想表达x和y两个国家的老龄化人口都很高。还是要用The proportions of aging populatiom in X and Y are very high.谢谢老师！

问题 简单句合并成含有定语从句的句子后of所有格问题

...定语从句的句子：He showed me a photo in his room. It was a photo of a famous cultural relic in Egypt.答案是：The photo (which/that) he showed me in his room was of a famous cultural relic in Egypt.但是我觉得后面的of a famous...部分不太对，原句是of所有格，改写后的...

问题 examples of是什么意思

Even people who take no interest in art cannot have failed to notice examples of modern sculpture on display in public places.老师句中examples of啥意思，学生该怎么理解？

问题 of all that 分析

Now，Let’s do a quick review of all that we learned today.前半部我还能看得懂就是到了of all that 就看不懂了能帮忙分析一下吗？谢谢老师!

问题 of being 用法

For the time being, hypnagogic jerks remain yet another mysterious evolutionary quirk of being human-but they certainly aren't an issue worth losing sleep over.这句话of being human为什么要加being有强调是人类的意思吗？

问题 可以用it is kind of sb to have done sth吗(不定式用完成式)

关于前面讨论的“it is +形容词+ of sb to do sth”句式，我也有一个问题，那就是其中的不定式可以用完成式吗？比较：It was kind of them to help me. It was kind of them to have helped me. It was nice of you to come. It was nice of you to have come.&...

问题 of短语

a piece of clothing.一件衣服。如果要表达“一件红色衣服”或“一件漂亮衣服”，请问red和beautiful放在piece前还是clothing前？谢谢

问题 a form of 后面加名词的单数还是复数

真诚请教：a form of 后面加名词的单数还是复数？Earthquakes are a form of natural ______(disaster).应该填单数还是复数呢？还是单复数都可以？用法是否和a kind of 相似？

问题 下文的21 percent为什么放在了of的后面

a whiff below the normal amount in breathable air of 21 percent正常的百分比应该是放在of的前面，在这里为什么会放在of的后面？谢谢老师。

问题 warn sb of/about sth

We warned our children of/about the dangers of playing in the street.Janet warned me about the water. She said it wasn't safe to drink.这两个句子中 warned 后面所接介词为什么有区别? 是warned of和warned about在意思上有什么区别吗?