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问题 find的一般现在时与现在完成有何区别

请问专家：find 的一般现在时与现在完成有何区别？I find he is a thief.I have found he is a thief.

问题 complain about 与 complain of 的区别

As the neighbours complained of the noise, my husband spent weeks training him to press his paw on the latch to let himself in. 1.这里为什么不用complain about?2.complain about 与 complain of 的区别？

问题 这道高考题的虚拟语气对吗(2014高考北京卷)

We would be back in the hotel now if you didn’t lose the map.（2014高考北京卷）老师，您好。句中didn't lose对吗？我查了虚拟语气相关知识，没有找到理想的依据。烦请老师指点迷津。

问题 the 10.50 to Liverpool的用法疑问

The next train to arrive at platform 4 will be the 10.50 to Liverpool.我觉得常见的应该是:The next train to arrive at platform 4 will get to Liverpool at 10.50.谢谢!

问题 spent their lives crammed into cages的疑惑

Hens spent their lives crammed into cages.母鸡一辈子都生活在拥挤的笼子里。spend lives后面不是一般跟doing，为什么这里是过去分词

问题 英文中引号的疑难

...e attention, and in observing them carefully.”这个句子中，引号中的“superior to the common run of men in noticing things which easily escape attention, and in observing them carefully.”是否整体作一个表语？如果不是，引号在这里的作用该如何理解？表强调可...

问题 重读音节中的元音字母为什么不发长音

minute是双音节单词，mi-nute，那么mi在重读音节，为什么不发长音i：，而是发短音i呢？请老师帮忙解答！类似的还有 habit。

问题 关于葛底斯堡演讲的词法问题

请教老师文中的for（作为了讲还是对于讲）和rather的具体含意，及四个破折号的作用，非常感谢！ It is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. It is rather for us to ...

问题 fire、dismiss、sack(解雇)的区别

请问 fire、dismiss、sack 三者在表示“解雇”时有什么不同？

问题 than的成分和含义

They are a priori because it is inconceivable than we should ever have any future experience that will not also involve them.

问题 that 省略的问题

原句：Smog choked our cities and rivers were so contaminated they regularly caught fire.请问老师这句话中 smog 后面是不是省略了一个 that, 然后 contaminated 后面也省略了一个 that.

问题 All rights reserved.的省略分析

老师好，All rights reserved. 是省略了什么结构呢？

问题 prove 能否加 it 的问题

It proved that the rumor was true. 这句为什么错了？错在哪里？

问题 名词quote与quotation的区别

quote可以用作动词，也可以用作名词。但当quote用作名词时，它与名词quotation有什么区别啊

问题 as if的疑问

to label or mark with or as if with a brand请问老师，这里第二个or为什么连接了一个as if？不是很明白。谢谢！