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问题 为什么从句里助动词是原形

He commanded that roads be built to link castles across the land...

问题 arrive in, arrive at以及arrive on的用法问题

When I frist arrived on this island, I had nothing. 一般 arrive 是与 in 以及 at 连用。请问什么情况下用 on 比较合适？ 

问题 he has since died from lung cancer的分析

When I finally saw him it had spread and he has since died from lung cancer.句中的 he has 做何成分？如何解释？

问题 对并列可数名词与不可数名词提问用how many还是how much

... did you have this mornig, Tom?上述选项，我选择1；网上有选择2的，原因说是就近原则；请教老师: 该怎样判断和解释，谢谢老师！

问题 英语难句分析（涉及三个分句的并列以及instead of的用法）

you end up spending your time lamenting what you failed to accomplish instead of moving forward, excited about what you've achieved.这句话 spending,moving,excited 三个分句并列对吗？请老师回复下，再解释下 instead of。Thank you!

问题 As far as以及as做状从的用法

...师这句话的as为什么指代的是“one-take Wendy”呢 as做状语从句不是应该指代前面整个句子吗?

问题 the simple reason that还是 the&n

请看下面一题： We didn’t go swimming for the simple reason ________ the water was too cold. A. that B. why C. when D. where 请问答案是A还是B（when和where很容易排除）。for the simple reason that 与 for the simple reason why 有何区别？

问题 be for the same day 为什么用 for 不用 on

原句：Either way, his reservation was for the same day as his murder, so at the very least, I'd like to know what—or whom—he was doing there.（出自美剧《Elementary》S06e16，00:11:02,480 --> 00:11:03,840）这里的 was for the same day，为什么使用for，而不是on呢？

问题 go to a doctor 与 go to the doctor

你好，请问一下初中阶段要用英语表示去看医生是go to a doctor还是go to the doctor呢？这两个可以互换吗？有什么区别吗？

问题 如何判断一个动词的主语能否为Something

...allows the banks to pocket 2% on every sale made using a credit card.这里的using a credit card应该是做made的方式状语吧？every sale能做using的逻辑主语吗？查了查词典use的主语一般都是人而不是事物？或者说这里是不是在using前面少了一个介词by？Fee...

问题 need doing的用法

老师你好！以上红线下划线处need用在肯定句中做实义动词，后面动词应该用动词不定式，这里为什么用动词的ing形式looking after? 是不是有错误?

问题 He fell asleep over a book中over的用法

某本书说：He fell asleep over a book.=He fell asleep when he was reding a book.类似这种 over 的例子有哪些？

问题 形容词加动名词做主语

Busy juggling careers and families,more couples don't take the time to sit down. 这里的busy是什么用法？可以修饰动名词做主语？

问题 英语长难句的语法及句子结构分析

Having noticed my interest in stories, my parents lost no time in initiating me into reading. They bought many storybooks with illustrations, and whenever free, they would read these stories to me over and over again. By and by I had a vocabulary large enough to read on my own. 老师您好，我想...

问题 与祈使句连用everybody等是什么句子成分

...fee! 喝杯咖啡吧!Remember to switch off all the lights. 记着把所有的灯关掉。但一本书上说，对一群人说话时，可以在祈使句的动词前加上everybody, someone之类的词。如：Everyone keep quiet! 大家安静!Nobody say a word! 都不许说话!Somebody answer the p...