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问题 down是介词还是副词的区分

He rolled his suitcase down the hall. 这句话里面down是介词还是副词？

问题 定语从句引导词where

I’ve been very careful about the companies where I apply.当从句中缺少地点时，引导词用where，此句好像不是缺少地点状语，为什么用where？

问题 关于单宾语的被动句

The walls were ruined in wars.I was beaten by him.这两句的介词短语分别做地点状语和动作状语吗。都没有宾语。单宾语被动句本身没有宾语。

问题 副词是否能修饰be动词

where is the toilet.1.副词是否能单独的修饰be动词。2.where是疑问副词 ，在这句话中 where 是在修饰is么。

问题 不及物接同位语从句疑问

The story goes that William killed his wife. 为什么goes不及物可以接从句？

问题 suggest sb doing

"I suggest the meeting be put off till next week" he said.为什么是be put off, 不是suggest sb doing 么？

问题 where从句可以用及物动词吗

I drive to the place where i don't know. know是接place的吧？

问题 Without fail 是什么成分？

I hear the news every evening without fail. Without fail是做什么什么成分？为什么用原形而不是用分词failing?

问题 现在分词的使用问题

请视原句：I can't even afford the streetcar fare <going back home>.请问此句中的 going back home 于句内作何成分？其所修饰的是主语还是 fare？

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？