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问题 doesn't如何理解

I wonder if this blandness of our diet doesn’t explain why so many of us are overweight and even dangerously so. 请教各位doesn't如何理解？能否删去？

问题 高二填词题

The word bai means white，and while Chinese is pronunced “Bai”，so maybe this is ___their name derives from.这是一道高二填词题，在空白处填写合适的单词。这道题答案是where，我填的what，因为我觉得derive from后缺成分。请问老师为什么填where呢？

问题 growth前冠词的用法

And it’s foreign trade posted steady growth.The GDP for the year posted a 2.5 percent growth.分不清growth 前什么时候加不定冠词，什么时候不用不定冠词修饰。

问题 这个entertained 和 inspired 怎么理解

It provide them with narratives that entertained and inspired.这个entertained 和 inspired 怎么理解? 能换成entertaining和inspiring吗？ 

问题 并列句相同主语的省略

ZhangTian graduated from university and got a teacher's certificate last year.这句话是并列句还是简单句，是否涉及到并列句相同主语的省略?

问题 过去分词短语是定语还是状语

Students are given 2 program choices based on interests and background.请问过去分词短语是做定语修饰前面的名词program choices吗？还是状语修饰动词give？

问题 关于starting的理解

老师好，请教下这句话：Sicily was colonized by Phoenicians,Carthaginians,and Greeks starting in the 8th century.这里的starting现在分词，和主语Sicily什么关系？是作伴随情况吗？可以理解为following一样为介词吗？有劳老师指教，多谢！

问题 where引导的什么类型的句子

But strength of will is the missing ingredient where Mr. Cameron and public health are concerned.谢谢老师!

问题 clearer 是形容词吧

At road intersections, high-rise buildings and fashionable billboards come clearer into view.改句中的clearer是形容词吧？做什么成分？谢谢专家老师。

问题 被动变主动

when you look into a mirror,your image is reflected back to you. 后半部分变成主动句:1.The mirror reflects your image back to you.(back做副词修辞谓语，to you做状语) 2.The mirror reflects back your image to you.(reflect back做动词短语) 3.The mirror reflcts back to you your ...

问题 compete doing sth还是compete to 

compete后接动词用不定式还是用动名词？即表示竞争做某事，英语应说compete doing sth，还是compete to do sth？

问题 I was damned if I was going to...是虚拟语气吗

I was damned if I was going to go with them.请问这是虚拟语气吗？

问题 主系表结构后接to do,of doing,that从句的区别

主系表结构后接to do,of doing,that从句的区别：很多系表结构后面都可以接这三种情况，请问其用法区别？

问题 sail to 和 sail for有什么区别(都不能用将来时吗)

The ship sails for Qingdao tomorrow. 这里用sail for 或者sail to 有什么区别？  此外，即使有了tomorrow这个时间，这两个词也都不能用将来时吗？

问题 某个on+which句子的疑问

请教一下句子These circumstances make it difficult to find site on which to carry out experiment.介词+which是把定语从句中的介词提前所以这句话是These circumstances make it difficult to find site  which to carry out experiment on.吗？但是好像没有carry out on 这么个...