问题 现在进行时与until的搭配

I'm living with some friends until i find a place of my own.我认为这句话有两种解释1，现在进行时加一段时间表示暂时，比如you're working hard today ,表示在我找到地方住之前我暂时和朋友住，现在正处于和朋友住的状态2，现在进行时表...

问题 这里的并列为什么用形容词

Nevertheless, there exist three kinds of risks that could slow it down: regulatory, competitive and those that are intrinsic to its own model.老师这里的三个并列regulatory, competitive and those that are intrinsic to its own model.为什么前面两个要用形容词，是省略了risks吗...

问题 为什么作“自然”解时nature前不加定冠词

...语语法中有一个规定，即独一无二的事物前加定冠词，如the sun, the earth, the moon, the sky等，而nature（大自然）也只有一个呀！可是the nature却是错误的。universe表示的是和nature差不多的东西——都是我们生存于其间的环境，都是独...

问题 There is a book on the desk.中蕴含的语法现象分析

老师好：请教一下。There is a book on the desk.中蕴含的语法现象分析.

问题 to biodegrade 是悬空不定式吗

老师您好！看到书上这样一段话：These synthetic plastics take several hundred years to biodegrade, which can be bad for the environment.If people throw plastic items on the ground or into rivers, they can end up in the sea.(1) to biodegrade 是悬空不定式吗？意味着to biodegrade...

问题 How Big Data Can Help Save the World 对吗

How Big Data Can Help Save the World 如何用大数据拯救世界？请问各位老师，根据我学的语法知识，how后面应该跟can才对，为何把主语big data放在how的后面？谢谢指教！

问题 关于定语从句口语表达区别

Is the man brave you know？Is the man you know brave？Is the man brave that is excellent？Does the man you know know you？Does the man know you that you know？这几种表达哪种在口语中常用？

问题 表示“按天计”是by day还是by the day

表示“按天计”是by day还是by the day?

问题 have got time与have got the time有区别吗

Have you got the time？现在几点了？Have you got time？你有空吗？请问老师我的理解对吗，我没有依据，就是语感。多半是错的吧？ 

问题 He put it on the table.介词短语是状语还是宾补呢

He put it on the table.介词短语是状语还是宾补？判断的依据是什么呢？

问题 The lake is safe to swim in(为什么in后置)

The lake is safe to swim in.in在里面起什么作用，为什么后置?

问题 连用过去时间状语为什么用一般现在时(is set in the 19th century)

The novel is set in France in the early 19th century.is set in 为什么不能用 was set in? 谢谢!

问题 请分析：Write the letter for each color.

问题 写信落款学生会 the student union 还是 students

问题 enough 用法疑问(The food is enough 错在哪)