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问题 现在分词短语 using...的用法疑问

老师您好，请问下面这个句子中，use为什么要用现在分词的形式。When we tell a story or joke we often describe the main events using the present (or past) simple and longer, background events using the present (or past) continuous.

问题 of twelve是形容词的意思吗

It was a terrible task for a lad of twelve to rise every morning, except Sunday,。of twelve是不是of +名词=形容词的意思?

问题 求教一句话的意思

If ever the earth has noticed a system of administration conducted with a single and keen eye to the general interest and happiness of those committed to,it must be the system protected by truth,to which our lives have been devoted to.求教前半句的意思，分析一下句子结构。

问题 feel extravagant doing sth 的用法

I felt very extravagant spending £100 in a dress.这句话我的理解是feel adj doing，那么这样的话feel是不是相当于系动词，adj和doing都在句中是什么成分？

问题 appear to be adj. 的用法

我们知道apper to be adj这里是系动词用法，appear to do 这里是半助动词用法。我就想问下有没有appear to be done这个用法？如果有这里的appear 是什么词性。谢谢老师!

问题 be supposed to的疑问

 you l'd better hurry,i'm supposed to be meeting Chris in 10 minutes. 这句话里为什么要用be meeting呢？ 我的理解be supposed to 表示本应该，be meeting表示计划安排见面，那么该怎么翻译呢？谢谢

问题 indicate的理解问题

..., but about the vast number of girls and women their images influence此处的indicate翻译成什么含义比较合适？

问题 none、nobody的使用问题

This question is too hard for            to work out.A. everyone    B. any of us     C. nobody     D. none of us老师，这题是怎么排除BCD选项的，求教？

问题 and 后面的句子没有 be 动词

Whittingham started his research into lithium batteries in the 1970s at a time when world oil prices were high and energy availability a big concern. and 后面的部分是不是少了个 was？

问题 to be seen 的意思

看《经济学人》遇到这样一个句子“The authorities are keen to be seen to be cracking down hard.”请问这个句子和“The authorities are keen to be cracking down hard.”有何区别？如果有，“to be seen”在句中作何理解？可以帮忙列举类似的用法吗？

问题 to的用法

...体）对于，关于 She is devoted to her family. 她深深爱着自己的家庭。 her family is affected by an action？ What have you done to your hair? 你怎么把头发弄成这个样子？ your hair is affected by an action？ 请问这个用法如何理解？

问题 修饰比较级的副词选择问题

1.The meeting lasted two hours ( ) than usual.请问这个空格除了填longer外，可以填more吗？2.The Yellow River is long,but the Yangtze River is ( )longer.请问修饰longer的副词，如果我填 （far/much/even/rather）longer 是否也都可以？ 

问题 electric和electrical的区分

...系统”英翻译为：electrical system还是electric system？两个词的释义分别为：electric: connected with electricity; using, produced by or producing electricity. electrical:connected with electricity; using or producing electricity。释义非常接近，而电系统，我理解...

问题 My pleasure与with pleasure的区别

九年级英语书上的对话有一段：-Can you help me think of an invention?-My pleasure.这里不应该用with pleasure吗？My pleasure可以用来回答请求吗？

问题 句中的过去进行时

If a similar readjustment were to happen this year, it could lead to the government saying it was now on track to meet its modest 2030 target without the carryover credits.本句中为什么saying后面要用过去进行时呢？句子不是对于未来的虚拟吗？谢谢回答