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问题 I'm going to take a trip on sunday有错误吗

I'm going to take a trip on sunday.这句话有错误吗？为什么？

问题 过去进行时用法

On 8th July, 1947, an army officer reported a crash at the Rosewell base in New Mexico, USA. .... Within hours, people from the base were saying a UFO had crashed there. But later the same day,.......请问此处为什么要用过去进行时呢? 一般过去时可以吗? Thanks♪(･ω･)ﾉ

问题 请老师分析句子

This company reports not being able to pass on higher costs to its customers.There was surprise that the new store, likely to open next year, is so close to the existing one, where profits have so far beaten Parkin’s sales targets, in case it draws customers away from the existing outlet.

问题 upward percolation如何理解

...h.com/question/56379这个句子是：He lectured on more topics than were included in the syllabus. (该书第1120页)我在剑桥语法找到了这个句子，但它在解释中的 upward percolation 我看不懂，所以请专家老师解释一下，万分感谢！

问题 see sb doing的宾补能是短暂性动词吗

...？麦克米伦词典上也有类似的例句：I observed him putting the watch into his pocket. 我看到他把手表放进口袋里。enter和put...into都是短暂性动词，单这个语境并没有体现反复发生，该怎么理解呢？

问题 I insisted on doing most of the baking myself

这是2015陕西高考改错题目。I insisted on doing most of the baking myself.这句话的myself似乎不对，如果是强调I, 似乎没什么必要。如果强调自己做，是不是应该用do it by myself?

问题 句子分析之Whenever引导的句子（另有名词+介宾短语）

...er any creature broke loose on Zukerman's farm, the event was of great interest to the others.分析如下：从句：主谓宾+介词短语，介词短语on Zukerman's farm 做地点状语修饰broke。  1.Whenever 引导的整个句子做时间状语，修饰主句的was？ 主句：...

问题 be timetabled for与be timetabled at/on的区别

The party is timetabled _____ 8:00 a.m.请问填什么介词，所给答案是 for，可以填 at 吗？如果是某一天呢？用什么介词？如：The party is timetabled _____ July 18.也是填 for 吗？可不可以用 on？谢谢！

问题 主谓一致疑问：More nurses is the next item on the agenda.

看到这样一个句子：More nurses is the next item on the agenda.不明白为什么用单词动词。

问题 Susan sat on a chair close to the window.分析

Susan sat on a chair close to the window. 朗文词典中，这句是放在 close 形容词性下的解释。我没理解，如果是形容词的话，修饰哪个名词或代词？

问题 it的用法

I never do anything whatever on the ground that it is good for health, though in actual fact the things I like doing are mostly wholesome. the ground that it is good for health老师对这句的结构不太了解，it是形式主语吗？为什么用it而不是直接是关系代词（that）+is...

问题 名词+to+vi+介词

请教一下各位老师，以下两个句子：I need a pen to write with.The chair looks rather hard, but in fact it is very comfortable to sit on.都是“名词+to+vi+介词”的形式，为什么一定要用介词？第一个to do是做目的状语吧？第二个是做方面状语？谢谢。

问题 though comfortable 是什么结构

On such a snowy day, I would go to work by bus rather than by driving my car, which, though comfortable, is more dangerous, — especially given my poor skills in driving.请问： though comfortable 是什么结构？ given在这里是什么意思？

问题 第一个句子是bridge的同位语还是独立主格结构？

One of the earliest Chinese arch bridges with a long open-spandrel arch in the middle and two small arches on each side,this bridge occupies an important place in the history of Chinese bridge building and has been of interest to tourists and engineers alike. 翻译：这座桥是一座空腹式的...

问题 far and away是什么意思

Xiao long bao (soup dumplings), those amazing constructions of delicate dumpling wrappers, encasing hot, ___56___ (taste) soup and sweet, fresh meat, are far and away my favorite Chinese street food. The dumplings arrive steaming and dangerously hot. To eat one, you have to decide whether ___57___ (...