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问题 until和unless的区别

...问下A可以吗？想问一下按照中文翻译 until 和unless都可以的情况下怎么区分？e.g. I won't come into the room until you call me. I won't come into the room unless you call me .意思上有区别，但是语法上是都可以吗？

问题 不定式做主语和现在分词做主语的区别

It is necessary to be prepared for a job interview._____ the answers ready will be of great help. （很早的一道高考题）A. To have had  B. Having had  C. Have  D. Having请问这里为什么不选A（答案是D）？不定式做主语和动名词做主语有什么区别？谢谢！

问题 这个高考题句子中的现在分词短语作什么成分

Later, they learned to work with the seasons, planting at the right time and, in dry areas, ______ (make) use of annual floods to irrigate (灌溉) their fields.(2020浙江卷2)答案填 making，与前面的 planting...并列。请问句中的这两个现在分词短语作什么成分？

问题 连系动词look用于进行时态的问题

有的书说连系动词look可以用于进行时态，而有的书又说连系动词look不能用于进行时态。到底哪个说法对？

问题 很奇怪的反意疑问句

看到这样一个反意疑问句，觉得很奇怪 He works very hard, does he not? 请问为什么不用 doesnt he 呢? 请老师解析，谢谢!

问题 appear与seem的用法及区别

appear 是否与 seem 用法相同？ She did not appear at all surprised at the news. 如果用法相同，为什么 appear 后还要加 at 呢？

问题 中译英翻译（提供的词汇为compete）

中译英：我们这些小零售商（retailer）无法和超市在价格和销售等方面竞争。(compete）请老师中译英此句，非常感谢！

问题 单个的 provided 可以作后置定语吗

I think it is important that the aid provided is used for the intended purpose.这个是形容词后置吗？还是说这是个短语？

问题 动名词作宾语的问题

I have a hard time getting used to living in a big place.这句话里为什么 getting.....这个动名词作宾语？宾语不应该是 a hard time 吗？

问题 owe还是owe to的区别

He owes to Chinese company.为什么这里要用to，欠钱不应该就是He owes Chinese company 吗？owe是个及物动词呀！谢谢老师了！

问题 这句话的不定式作什么成分？

There appears to be increasing support for the leadership to take a more aggressive stance...

问题 in post的用法

She will remain in post to bear the burden of the European election results, which will be announced on Sunday night and are widely expected to be grim for the Tory party. 请问in post做什么成分

问题 noise的可数性(可数还是不可数)

make a noisenoise前的a如何理解？是可数名词吗？可以说make noisesmake noise吗？noise 可用作可数名词，也可用作不可数名词。麻烦老师分析一下，谢谢！

问题 这里的present themselves如何理解

Nothing lay ahead us but exertion,struggle, and perverance.Those who are able to took advantage of the oportunities for success and happiness that present themselves.

问题 will 的用法（won't open）

A给B开门，发现打不开，这时A说“It won't open.”请问这里是will的哪种用法？