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问题 在什么情况下过去时与现在的情况相反

As far as I can remember he was supposed to be on a business trip to Lisbon.  像此句满足过去时与现在事实相反么？

问题 系表结构后的不定式作什么成分

句1：We feel natural to communicate with our friends.句2：The water is safe to drink.请问这两句话中不定式做什么成分呢？

问题 形式主语和逻辑主语

...西吗，为什么有些人认为it就是逻辑主语，it is impossible to do that,他们认为it 就是不定式的逻辑主语，我觉得it 不是为了句子简短语言习惯，想让人直接知道结果从而用it指代，it是形式主语，形式主语的作用就是语言习惯对吗？...

问题 having done 用作伴随状语吗

Bob, ____ Japanese at college, offered to translate the article for me.A. learned       B. having learnedC. being learned  D. to have learned各位老师好，这个题网上的答案都是选B，我知道having done 结构不能作定语，那么这里选B是作伴随状语吗？还是说答...

问题 这个on the phone是什么意思

有这样一个句子：We’re not on the telephone, so you’ll have to come round to the house. 不知道句中的on the phone作何解释。用书上on the phone表示“打电话”来解释，说不通吧！

问题 不定式在名词后面是作定语还是目的状语

Many technology companies have used the program to fill job openings.to fill 是谓语动词的目的状语还是 program 的定语？

问题 非限定动词时间问题

The continent’s museums are still coming up with good reasons to get you on a plane.不定式是发生在谓语时间之后的动作，那么我想问这个谓语指的是谓语中的助动词还是整个谓语部分（包括非限定动词在内的谓语部分）.上句中的非限定动词to get...

问题 ancient China 是中国古代还是古代中国

People had less freedom to find the person they want to be with in ancient China, ______　marriage was often decided by parents or even the government.空白处填where, 还是when?

问题 不是...而是的翻译方法

...  ideal on  his  students ,instead he  encourages them to think independently.2、这句话可以用 rather than翻译吗？Professor Du does not impose his  ideal on  his  students ,rather than encourages them to think independently.

问题 be useful加各种介词的意思

be useful to sth/sb；词典：对…有益be useful to do是什么意思，有这样的用法吗？be useful for词典：对…有用; 具有…用途 be useful in doing是对做什么方面的事有帮助有用，还有是  be  useful in sth什么意思？

问题 barely 的倒装疑问

In 2004,only about 524,000 salmon are thought to have returned to the spawning grounds, barely more than a quarter the number who made it four years earlier.   【我的疑问】① barely 是否引起了倒装，主语是524,000 salmon还是the number，quarter后面是否要加...

问题 介词短语是作为状语还是作为定语

... what you have done】是状语吗？His mother offered her apologies to the Jones family【to the Jones family】是状语还是定语呢？如果遇到类视情况，应该如何快速判断呢？

问题 判断是主谓结构还是主谓宾结构

...看一下下边的句子是主谓结构还是主谓宾结构：1. I went to school.  是主谓吗？to school做地点状语吗？2. He waited for the bus. 和1一样吗？还是wait for 看作成语动词，the bus看作宾语呢？这样就是主谓宾吧？3. He looked at me. 这个和2是...

问题 otherwise位于句末的用法与理解

But it also means you get less time to be playful, to figure stuff out in the way that more time might allow you otherwise. 后半句的语序没看懂，otherwise在这个做什么成分？

问题 than后为什么接动词不定式

曹老师，想请教一下，know better than to do sth是一个固定表达，意思是“还不至于(无知到)去做某事”，其中than是连词或介词，为什么这里的than后可以接不定式to do呢？