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问题 过去时情态助动词could/would/should/might+have+done这种形式为什么可以表示现在或将来的虚拟呢

You could have come yesterday/today/tomorrow.(You had the opportunity to come, but you didn't take it.). She ought to/should have gone to the dentist tomorrow.(But she has cancelled the appointment.) Bill would/might have bought a motorbike last year/now/soon. (But he was in a bad crash last Janua...

问题 关于you think作插入语

criticize: to say what you don’t like or think is wrong about sb/sth在这个关于criticize的解释中， think前面是不是省略了what you？ 如果是to say what you think is wrong about sb/sth， 这里you think是插入语吗？不是很理解原句，求解答。

问题 when引导从句表示“既然”和表示“如果”的区分

How can you expect to learn anything ____ you never listen?   A. in case  B. even if    C. unless   D. when答案为 when。到底是“既然”的意思还是“如果”的意思。我认为在这都说得通，结构也没问题，请讲解一下。

问题 which与which kind of的用法区别

Which kind of transport do you prefer to use, bus or train?可以去掉 kind of transpot 吗？还有，下面这个句子对吗？Which do you enjoy spending your spare time in, playing cards at home or taking a walk in the park?

问题 此处的so引导的是目的状语从句吗

He's gonna be this broken shell of a man, so you should try not to look too terrific.请问此处的so引导的是目的状语从句吗so you should try not to look too terrific. 这个从句是虚拟语气吗谢谢老师解答

问题 请问：粗体部分的句子是什么意思？

Now comes news of a nasty noodle meltdown. It is less a sign that China’s long consumer boom is waning than that Chinese tastes are changing.请问：粗体部分的句子是什么意思？

问题 should在虚拟语气中什么时候不能省略

They required the crops ______ harvested at once.A. should be     B. be     C. are     D. must be这题为什么选择A，B为什么不对。谢谢。

问题 all you like 的语法分析

You can bargain with me all you like.  请问all you like这里是什么分析的结构？是省略了什么吗？如果补充完整应该是什么？

问题 stay on 与 stay 有区别吗

Few people stay on at school.这句话中 stay 后面为什么要加 on？

问题 关于offer的语法疑问

请问曹老师，在这句话中My parents seldom take me to expensive restaurants but offer me to the best school. 中，offer的用法要怎么理解呢？不是offer sb sth或offer sth to sb吗？谢谢老师！

问题 分词的用法（成分）

James is busy practising for the school concert.They have fun riding with their friends.这里的practising, riding都是分词形式（没有介词，不是介词+V-ing形式），在句中和前面内容的连接感觉不是很紧密，这里的成分应如何分析？这种分词的内容可以...

问题 过去完成时和一般过去时辨析

...: Why ! Where's my passport? Maybe I left it on the plane.B: My Goodness ! You (   ) things behind.A. had never left    B. didn't leave    C. never left          D. left这道题答案是C. 但是，我认为是A。因为B的意思是：当时已经承认A的left的过去事实了...

问题 it作形式主语或形式宾语时是代词吗

... ball to her and she caught it. 我把球扔给她，她接住了它。Eat your soup. It’s good for you. 把汤喝了，（它）对你有好处。I’ll need to adjust the clock. It’s slow again. 我要把时钟拨一下。它又慢了。请问一下，it用作形式主语和形式宾语时，...

问题 the moment引导时间状语从句时前面可以加介词吗

...语从句，相当于 as soon as：The moment I have finished I’ll give you a call. 我一干完就给你打电话。The moment he spoke we recognized his voice. 他一说话，我们认出了他的声音。The moment I saw him I knew that there was no hope. 我一看到他，就知道没有希望...

问题 shut the door after you的句子成分

Please shut the door after you when you leave.这里的 when you leave 是时间状语从句，但它前面的 after you 呢？是什么从句？