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问题 there的词性问题

There existed no organization to cope with espionage.1 这里的there是作副词吗？句子是副词提前的倒装语序吗？2 这里的there existed是否可以换为there was?

问题 but的用法

He always does the work, but in his own sweet time.He tried to save it, but in vain.这两句话中，but词性为连词吗？连词的话前后内容可以不并列吗？

问题 that引导的定语从句

They suspect that volcanoes effect weather changes that are similar to air pollution.请问老师这个that指代的是整个句子吗？

问题 英文“去电影院”怎么说

go to the cinema表示“去电影院看电影”，那如果只要表达“去电影院”要怎么说呢？

问题 这里的could是什么用法

Neither of my brothers could come to the party.这里为什么用could不用can？

问题 housing和house有什么区别

The university plan to renovate on-campus housing.

问题 是否属于悬垂分词的判断

Monks smuggled silkworm eggs to Constantinople in 550 AD, concealed inside hollow bamboo walking canes.请问concealed是不是属于悬垂分词错误？

问题 介词可以修饰副词吗

He wanted to have a source of income after his retirement; until then, he wouldn't require additional money... until then成分怎么判断呢？

问题 have +n doing

I have trouble reading it 请问老师，这里reading面前是不是省略了at ？如何理解have doing，能have to do 吗？

问题 hold的意思

What the writer meant, I think, was singleness of mind, holding steadfastly to the purpose in mind, without being drawn aside by less worhty objects. 请问hold在文中怎么理解？

问题 before 还是 until

After the accident it took a long time before she had the courage to take a plane again. 句中before为什么不能替换为until?

问题 what做什么成分

This holiday shows kids what it means to be a grown-up in the working world.what在句中引导的是什么从句，作主语还是宾语？

问题 句子成分

At issue is the TMT's planned location on Mauna Kea, a dormant volcano worshiped by some Hawaiians as the piko, that connects the Hawaiian Islands to the heavens. 后面的定语从句是修饰M K吗？

问题 as介词用法

use sth as牛津字典给出了这一用法。但visit sth as找不到这一种用法。这里是visit和as搭配，形成visit sth as？还是to…Rome相当于名词，as作定语？请说明理由

问题 请问为什么这是宾语从句

me感觉就是宾语啊？那后面的he would go to ...为什么还能作宾语，成为宾语从句了？