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问题 谓语和非谓语的判定

The man looked at me, smiling and ____(say) “Thank you.”请问这个空填said还是saying，还是都可以?

问题 ten meters long用法

The classroom is ten meters long / ten-meter long.ten-meter long可以吗？如果不可以，错在哪里？

问题 over加数词用法

over加数词用法  over twenty people were seriously injured in the traffic accident over加数词时是介词吗 感觉加了数词是定语修饰prople 但介词短语做定语不是后置的吗

问题 分词做状语是非限定分句吗

Hearing the news,they all jumped with joy.上文中的现在分词hearing做状语,他构成一个单独的分句吗？谢谢老师的剖析。

问题 分词短语作定语还是状语

Google has to maintain vast data centers around the world, packed with powerful computers.请问这句话中的 packed with powerful computers 做什么成分，修饰谁？

问题 where的相关疑惑

They’ve also found profitable markets for the recyclables where cast-off items are acceptable or even welcome. 老师，这里的where怎么理解，这里的where可以用and替代吗？

问题 what 从句疑问

the environmental organization gives up control over what activities guarantee carbon offset credit to Agriculture Department请问老师，what 从句怎么理解？what 在这是代词还是形容词？ carbon offset credit 如何理解？在从句中那个是动词？guarantee 还是 offset？

问题 industry单复数问题

Tourist enterprises and any other service industry outside the zone are not entitled to any special status. 请问industry为什么不用复数industries形式？

问题 关于双重谓语的疑问

书上说双重谓语是由两个谓语合二为一构成的谓语结构，可是我还是不清楚它的使用?和并列谓语有什么区别呢？ 如Everyone stood listening intently. 那么He enjoys swimming in the sea.是双重谓语吗？

问题 fight through用法

Players must fight their way through the necropolis to answer a question. fight是个不及物动词，怎么直接接宾语了？ 难道是fight through词组拆开了？ fight through中的through是副词吗？

问题 关于分词作宾补

请问老师，这句话中 Tom was driving to his office when he noticed a car_____(stick) on the railroad tracks. 答案给的是stuck，可以填being stuck吗？就是注意到一辆车正在被困住。

问题 assume的用法

Tax and the benefit regulations still presume this norm.答案说把presume改成assume，句子意思变成：一些税收和福利政策仍然持有这一观点。assume我查了字典显示是假定，任务，呈现某种品质。没有发现有持有的意思。请问大家这里assume的用法...

问题 逗号的用法

These teens, with their "unattractive"and "fat"appearance and laughably bad singing skills, induce ferocious criticism, but at the same time, thrive on it.teens和with中间的逗号是否可以去掉？如果可以去掉，那么去掉和不去掉有什么区别？这里的逗号作用是什么？

问题 for引导的句子

各位老师们:Experts felt obliged to investigate，for the descriptions were extraordinarily similar.for引导的是原因状语从句还是一个并列句呢？for是并列连词，是不是不能引导状语从句?谢谢您的解答!

问题 从句问题

He just gave me the impression he could do whatever project we dreamed up better if he did it alone.这里he could do whatever project we dreamed up better if he did it alone是个什么从句呢？如果是同位语从句，为什么没有that呢？