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问题 having been done还是done

From the dates ____ on the plates, we decided that they were made in Song Dya、having been markedb、marked本题我选的是A，语法题做多了，考虑到mark先于decide，这样理解可以吗？B是普通陈述一般态？看张满胜书中说”having been done“不作定语，只做状...

问题 would的用法

When pianist Dave Brubeck appeared on the cover of Time magazine in 1954, he was both thrilled and embarrassed. At age 33, he was only the second jazz artist to be so honored — Louis Armstrong was the first — and Brubeck felt the honor should go to his idol Duke Ellington, who would wait ...

问题 介词in后面可接介词短语吗

...，但好像见过except, from, until后接可介词短语的，如except on Sunday, from behind the bed, until after the meeting等，好像没见过in后面接介词短语的吧？是书上说错了，还是真可这样用？谢谢老师解答!

问题 请问：句中的guesses是否要改为guess？

Furthermore, whatever merit there may be to guesses about selectional processes that might, or might not, have shaped human language, they do not crucially depend on the belief that the system is an outgrowth of some mode of communication.请问：句中的guesses是否要改为guess？

问题 【语法理论探讨】一个完整的单句可以有两个谓语吗？

【语法理论探讨】一个完整的单句可以有两个谓语吗？例如：Tom and Mary played and teased each other on the ground in front of the building from eight to ten yesterday morning.

问题 句子改错题：扩号里是错误题需要改正

Ppeople depend on it  (to) such (a great extent) (which) (every effort) must be made to preserve tress and wildlife.我觉得是把 to 去掉，对不对，谢谢!

问题 名词和同根形容词作定语

...eenage idol has been working with the UN health agency in China since 2017 on promoting healthy lifestyles among young people. He has also been working through his fund since 2017 to support disadvantaged children.请问该句中 a WHO China special envoy中的China是否应该用Chinese?

问题 Friday（星期五）前面为什么加了定冠词

It happened on the Friday before he left for Japan.这个 Friday（星期五）前面为什么加了定冠词？

问题 should have prefered to 怎么理解？

We should have preferred to leave on the 8th , but outing to some reason we didn't.请问：1。should have prefered to 怎么理解？ “应该+已经愿意”为什么要用完成时态？ 它究竟是什么意思，猜测吗？2。后半句实际没有离开，为什么反而不用完成时...

问题 现在分词短语修饰形容词。

On a D-AMPS mobile phone,the voice signal picked up by the microphone is digitized and compressed using a model thant is more sophisticated than the delta modulation and predictive encoding schemes.　　这里面斜体加粗的部分是现在分词短语，但是它修饰了前的形容词compresse...

问题 有关“小费”的一句口语翻译

...么事情，有人回答说 going out to eat at restaurants with $2 signs on open table. 底下字幕是去饭店吃饭，还可以把小费大方的放在桌上。请教老师这段话后半部分字幕翻译是否准确？我不明白这些原本简单的单词，怎么会在这里表达出这...

问题 是否应用被动语态做后置定语的疑问

我看一篇有关手机安全使用文章中一句话：Despite monitoring apps and restrictions placed on phone, parents are finding it hard to keep up with their kids.我查了一下词典中placed没有形容词性，所以placed这里不是形容词做restrictions的后置定语，那这里是...

问题 it作主语的用法

...the far more well-equipped laboratories and delicate instruments back here on Earth to tell us whether our samples carry evidence that Mars once harbored life. 请问老师们，这句话中it作形式主语，不定式作真正主语吗？还是说不定式作宾补，那it指什么呢？

问题 为什么用whoever而不用who引导主语从句

为什么这里用whoever不能用who呢。who可以在主语从句中充当主语呀?It is clearly stated on the bulletin that whoever throws the rubbish away at will will be punished.

问题 when从属连词和并列连词怎么区分呢

I was looking at the photos on the noticeboard when I heard a voice behind me.在这里when是并列连词。I was cooking when my mother got home .这里when应该是从属连词。但是我觉得这句话，when也可以是并列连词。从属连词和并列连词怎么区分呢？请师傅解答...