问题 mean可用于进行时态吗

如题。请问一下，mean 是否可以用于进行时态？谢谢！

问题 very sensible of是形容词短语吗

Perhaps that wasn't very sensible of them.类似句中的 very sensible of 可以把它看成形容词组吗？

问题 read Tolstoy in the original有所省略吗

I want to read Tolstoy in the original.这个句子是什么意思？句子有省略吗？

问题 however是用作连词作插入语吗

That's an explanation, however, not an excuse. however是作为连词，在这里是插入语吗？可以理解为That's an explanation.However, that is not an excuse？

问题 should have put中的have可以去掉吗

You should have put the book where you found it. 请问这句话中，have可以去掉吗？它做什么成分呢？

问题 other as a way to relax是省略句吗

Some people do it as a hobby, other as a way to relax.这里other后面不是省略了people do it吗？算是个省略句吗？如果是的话前面为什么不加连词？  

问题 一如何区别这两种意思？二在二中的2,3,4句我翻译的对吗?在2,4句末尾的China和china能用

...如何区别这两种意思？二.2.China is Chinese China.瓷器是中国的3.The china is Chinese China.这个瓷器是中国的。4.These china is Chinese china.这些瓷器是中国的。在二中的2,3,4句我翻译的对吗?在2,4句末尾的China和china能用one代替吗？即可以写成：...

问题 hence后面可以只接一个名词性短语吗

...是一个名词性短语吧！hence后面可以只接一个名词性短语吗? Hence不是副词吗？

问题 neither of which与neither of them

I have bought two ball pens, neither of which writes well. 为什么这个标红色的地方不能用 neither of them 或者 none of them， 好困惑，多谢解答！  

问题 How long既可以表示时间和距离吗?

How long does it take from A to B? 这种可以表示时间。我想知道 How long is the bridge over the Yellow River? 这种常见吗？

话题 do和say是及物动词吗

话题 lots of是限定词吗

话题 plenty of是限定词吗

问题 关于's省略问题

大家都知道在a teachers's school,a teachers's office中's是可以省略的，请问在a children's book中也能省略's吗？children education,adult education可加上's吗？在哪些情况下才可以省略's？

问题 长难句翻译

...cation should be kept separate, taught in different schools是作insistence的同位语吗？ 3 taught in different schools是与seperate并列的吗 原形是这样吗：keep them separate and taught in different schools