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问题 这道题为什么选择过去完成时

I felt extremely exicted as it was the first time taht I ______　abroad at all.A. have ever beenB. would have ever beenC. had ever beenD. was ever这道题为什么选择过去完成时？

问题 情态动词辨析(must与have to)

If it rains tomorrow, you ______ stay for one more day.A. have to     B. must选A还是B？还是二者都可？

问题 关于upon的用一个用法

老师您好！I should have written a thank-you letter for the lovely scarf you sent me for my birthday upon receiving it.本句中存在定语从句，即 you sent me 做 the lovely scarf 的定语。upon 在本句中该如何理解？盼复！

问题 这句为什么不是定从？而是同位语从句？

it was a sign that the child was growing up.

问题 so small后面接名词的用法

It would not prove difficult in a village of _____ siza.A. a such small   B. so smallC. the smallestD. so small a请问该如何选择，为什么？

问题 which的作用分析

It’s needless to say that the last sharing section which is the most meaningful is donation, during which time everyone present, teachers or students, is expected to donate one or more books to the library. 老师，这里的which是定语修饰time吗？看不懂这个which的作用和句子...

问题 关于work out

...s to work out.这句话中to work out做什么成分，为什么不是work it out .work out还是没宾语呀?

问题 请问all在句中的使用方法

Don't get all her up about it again.That's your side of the story.请问all 在修饰her吗？请具体解释一下all在句中用法.

问题 这个句子怎么分析呢，省略句如何运用

In most countries the cost of crude oil now account for a smaller share of the price of petrol than it did in the 1970s

问题 介词on

...呢？之所以有这个问题，是因为见过类似的句子：Work on it had begun before my sister left.Whatever project he works on is always successful.

问题 all是副词和是同位语

This is all really easy for you, isn’t it?all作同位语或状语时，好像在句中的位置可以一样，那么怎么分辨all是同位语还是状语呢？

问题 分词做状语 后面的主语问题

Called Singles Day, shoppers in the US don’t look forward to it the way they anticipate Black Friday or Amazon Prime Day.请教英语大神，called singles day是分词做状语吗，那后面的主语为什么是shoppers而不是singles day（双十一）。谢谢解答！！

问题 考研英语作文句子润色3

句子如下：When it comes to college graduation, a host of people consider seeking a job as the best choice, while from my perspective, I regard studying for the graduate degree as sensible, with the employment pressure is constantly growing overall.

问题 by the time是固定搭配吗

By the time we knocked off it was pouring with rain.by the time是一个固定搭配吗？如果是一个固定搭配，表示“在……之前”，那时态不应该是一样的啊？

问题 group numbers的意思与理解

It does not matter if there are more characters than group numbers: one person can play more than one character.这是高中英语新教材译林版必修2第1单元的句子(p13)。请问这里的 group numbers 是什么意思？什么语法？