问题 must表推测不能用于否定句中吗？

...s must not receive any message about her. They don't know what has happenedto her. A. must not have received B. ought not to receive C. not ought to have received D. not ought to receive A [译文]她的父母一定没有收到任何关于她的消息，他们不知道她出了什...

问题 求问I am happy living alone和I am happy to live alone的区别

老师好！请帮忙分析以下两句的语法成分以及区别：1-I am happy to live alone.2-I am happy living alone.谢谢解答~

话题 so far/up to now/thus far/as yet之间的区别

话题 不定式在句子who are you to take us down的用法

话题 to include all critical materials不定式在被动语态中做什么成分

话题 as 的用法（涉及as adj as it is to do sth）

问题 no more difficult=not more difficult吗

在资料上看到这样一句：Selling goods abroad is no more difficult (=not more difficult) than selling to the home market. 做外销并不比做内销难。能说 no more difficult=not more difficult吗? 这样一来那不是 no = not 了？

问题 hundred of, hundreds of 的用法问题

______ the students in our school walk to school every day.A. Nine hundred of    B. Hundreds of 我觉得两个都可以，这里表示整体与部分的关系。特指我们学校学生中的九百，或特指我们学校学生中的数百（表示概数）。请专家老师就...

问题 how my studies中的how作什么成份

But then I remenbered how my studies had been concentrated on geography, history, artimetic, and grammar, and I told the little chap that I did not know how to draw.请问老师how my studies,  此处how作什么成份，能换成that吗？

问题 动名词的完成式与一般式用法疑问

Now he regrets not having gone to university . … Mr. Smith regretted blaming his secretary for the mistake, for he later discovered it was his own fault. 按道理说都是在谓语动词之前发生的事啊？也什么不都用having done或者都用doing?

问题 单个过会分词作前置定语表完成

Another block to awareness is the obsession many of us have with naming things. 译文：另一个阻碍意识的障碍是我们许多人对已命名的事物的痴迷。 问：这里表示“已命名的”，表示动作已经完成，可以用named 这个形容词吗？name是“命名"意思...

问题 不定式表原因的局限性套路

...的时候是不是通常只用于表情绪的形容词后，比如I'm glad to meet you. 后面的to meet you是glad的原因，发生在glad之前。如果是其他类型的形容词是不是很多都只有表目的、意图或结果的含义？比如I feel tired to do this work. 我想用这个句...

问题 I hate to sound so negative here的分析与理解

这里的sound是表示听起来的意思吗？能否请老师们分析一下这句话的成分呢？

问题 Here are six skills you need to succeed

你好，请问这里为什么要翻译成成功所需要的六个技巧，而不是六个技巧你需要去成功的。感觉成功所需要的有被动含义，但是句子里却没有

问题 宾补的问题

...信念、料想、声明、认可或心理感觉等意义的词后的宾补to be经常省略，但却又给出了下面用to do的句子，所以不太明白该书是想表达什么意思，另外老师能给总结一下能接to be作宾补的词吗？We supposed them to have trial-produced new prod...