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问题 after后接动名词时是介词还是连词

老师您好，After removing a section of the mummy,they sent it to a laboratory.请问老师句中的 after 是介词还是连词？removing a section of the mummy 是否为现在分词做伴随状语？盼复！

问题 动词seat与sit的用法区别

...ere seen ______ on the benches, chatting happily.A. having seated  B. to seat   C.seating  D. seated答案为 D。B 不行，为什么？请顺便解释一下seat 的用法，以及与 sit 的区别，说 seat 是及物动词，它就得用 seated 的形式，太迷茫了。谢谢!

问题 do, does, did表示替代时的疑问

有时为了避免与前面出现过的动词重复，可以用动词do，但有时又用do so, do it等。如何区别呢？比如：My wife asked me to buy some bread, and I ____.填什么？did? did it? Did so?

问题 manager前不加冠词

Sam has been appointed _______ manager of the engineering department to take ________ place of George A 不填；不填  B the;不填  C the;the  D 不填；the我选得c 答案是d 后面有of引导的介词短语修饰该n，为什么不是指特指呢？答案中说到man...

问题 than did last year的说法对吗

最近专门看了专家们关于 than 用法的解答和文章，很有收获，但这个问题太难，所以仍有一些疑问，请教各位专家。请问下面一句对吗？More friends came to his birthday party than did last year.对错与否，请专家帮忙分析一下，谢谢了！

问题 hidden 疑问？

...e see ? Hidden behind a bush, a hunter was spreading his net. He was going to catch the Dove.(she=The ant)不理解文中Hidden用法，疑问是：此处的Hidden是形容词还是过去分词？如果是形容词，语法如何分析？如果是过去分词，逻辑主语是a hunter, 则似乎矛...

问题 destined for的理解

...estined for the Comecon countries declined from almost 15 per cent in 1978 to 6 per cent in 1983.过去几年中，总的来说，欧共体约占中国出口量的11%－12%，而经互会国家占中国出口的比例从1978年的15%降到了1983年的6%。请问destined for在文中怎么理解？

问题 不定式充当宾语和动词有分开的情况么

Finally the English government tried in the early twentieth century to form the United Kingdom by getting Ireland connected in the same peaceful way. 不定式短语是看做宾语还是状语呢 如果是宾语为什么和try分开呢

问题 一般过去时和过去进行时的区别

如题：They         a football game from 7 to 9 last night. （watch）答案是were watching。不过我认为watched也说得通：watch a football game这整个延续性动作从7点开始，到9点结束，全部发生在昨天。所以watched到底可不可以呢？

问题 with 短语在这个句子里面的成分不是很理解

The XRD patterns of both the samples were well indexed to the standard cubic CsPbBr3 phase, with no observable secondary phases。个人理解：with no observable secondary phases 有种补充说明的意思，难道是啥补充状语？

问题 英语句子翻译时的句子结构整合和重组

It estimated that the Chinese would need 1.17 billion square meters of housing for living annually on average from 2019 to 2030. 据估计，从2019年到2030年，中国人平均每年需要11.7亿平方米的生活用房。请问一下这样的翻译算不算是句子结构整合和重组？

问题 take a bus 与 take the bus

How do you get to school? I take the bus. / I take a bus.这两种说法都有，第一种有特指的含义吗?还是两种意思一样，只是表示我是做公交来的。谢谢老师！

问题 这里的can应该如何理解含义呢?

"Your wife says that nothing you can do will ever induce her to divorce you. She's quite made up her mind. You can put any possibility of that definitely out of your head."这里的can应该如何理解含义呢？我感觉这里类似于should含义。似乎must也可。但是理解不了这里为...

问题 by bike可以写成by a bike吗

我骑自行车回家。下面的翻译对吗？by bike可以写成by a bike吗？ 1. I ride a bike to go home. 2.I ride bike home. 3. I go home by bike.

问题 Stay where they work没有介词？

...f Shanxi Guild, a restaurant chain in Taiyuan, are staying where they work to serve clients during Spring Festival.Stay为不及物动词，为什么后面直接加了where引导的宾语从句？之前也见过stay where you are之类的话～这里的stay为什么都是加从句呢？