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问题 这句话中what引导的是什么从句

He says that more openness in science could help to discourage what some perceive as a common practice of shutting out early-career scientists' requests for data.请问这里what 引导的是什么从句？

问题 过去完成时时态问题

新概念二68课‘No, not at all,’ I answered. ‘I’m going to …’‘Would you mind my coming with you?’he asked, before I had finished speaking.没等我说完他就问道。不太理解的地方在于，一是before后面的内容应该是后发生的，为什么这里before后面用的...

问题 bear前为何必须加can't/could't

固定搭配：can't/could't bear to do/doing sth专业老师，请教动词bear前为什么必须加can't或could't？can是什么含义？

问题 front-loading用法

Much like "revenge bedtime procrastination" -the act of staying up too long to make up for the hours you spent working or caring for others during the day - lolling about in the morning is front-loading that "me" time before responsibilities invade这句话的front-loading that什么用法？front-...

问题 front-loading用法

Much like "revenge bedtime procrastination" -the act of staying up too long to make up for the hours you spent working or caring for others during the day - lolling about in the morning is front-loading that "me" time before responsibilities invade这句话的front-loading that什么用法？front-...

问题 这句话为什么用不定式作后置定语

Towns also have their own special probelms.Here are some to be found in London now.这句话中为什么会用不定式作后置定语，而不是用过去分词作后置定语

问题 Originally在这2句中是什么用法

...______(origin) as a form of ancient ritual dance, it was later developed into a popular folk art.   答案是Originally，此处originally是什么用法，副词修饰什么？2. It was originally a way for small companies to rent small space in great locations. 此处originally是什么用法，...

问题 because of短语为什么只用状语不用作表语

为什么介词 because of 引出的短语通常只用作状语，不用作表语，如 His absence is because of the rain. 是错误的，而 His absence is due to the rain.（他因雨未来）却是对的。

问题 of all others是什么用法（是有所省略吗）

Dear, dear! To think that I should be late on this particular morning, of all others! 哎呀，哎呀! 想不到偏偏要今天早上迟到! 疑问：of all others 是个什么用法啊省略了吗？

问题 副词修饰全句都要加逗号吗

很多副词都能在句首修饰全句，但副词修饰全句时都要加逗号吗？为什么 anyhow 放句首有时会没有逗号?Anyhow Tony intended to acknowledge him as his son.Anyhow I must tell the truth.

问题 seated,seating,having seated等的用法

Some old people were seen ______ on the benches, chatting happily.A. having seated     B. to seat     C. seating      D. seatedD 为答案，请问理由，解释一下 seated 在这种情况下是什么用法。谢谢!

问题 are more powerful a tool有语法错误吗

Long-term goals are more powerful a tool to drive young people on through their life time.请问这个句子有语法错误吗？可以这么表达吗？

问题 分析as expected的用法（它用作什么成分，是什么的省略）

As expected, the three men were sentenced to life imprisonment.请问这里的 as expected 是什么成分？它是什么东西的省略？谢谢！

问题 Not since...rather than...分析

...truman seized america's steel mills in 1952 rather than allow a strike to imperil the conduct of the korean war has washington toyed with nationalization,or its functional equivalent,on this kind of scale.

问题 It's time ...虚拟语气

...成下面2种：It's time we should order dinner.It's tume we were to order dinner.改写的对吗？分别是什么意思呢？是与将来事实相反的假设吗？如何翻译呢？（和It's time we ordered dinner 比较区分意思）。谢谢！