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问题 as...as结构后面的介词可否省略

His father began to work ____ his childhood.A. since        B. beforeC. as early as    D. while这个题目答案选C，是否省略了介词 in？第二个as 是连词，常省略动词部分我知道，但是介词不应该省略吧?

问题 新概念三第57课( 过去完成时)

He became mortally ill a few months before we had planned to go ......书上的解释是：在他计划回国的前几个月，他突然身患绝症。时间顺序上说，他生病在前，计划回国在后，为什么反而计划回国用了过去完成时呢？

问题 know sb do/to do/doing的用法

I’ve known him ____ (eat) a pound of snails.请问如何填？谢谢！

问题 having done 用作伴随状语吗

Bob, ____ Japanese at college, offered to translate the article for me.A. learned       B. having learnedC. being learned  D. to have learned各位老师好，这个题网上的答案都是选B，我知道having done 结构不能作定语，那么这里选B是作伴随状语吗？还是说答...

问题 逗号+vice versa是省略句吗

例句：the centre was simultaneously looking to a time when leading researchers could also be artists, writers and poets, and vice versa. 如果把vice versa整体当作副词的话为什么前面加了and？这是并列什么？

问题 定语从句中指人为什么用 which 不用 who

He is a good swimmer, which I am not.请问这里的 which I am not 是非限制性定语从句吧，它修饰的先行词不是指人吗？为什么用 which 而不用 who 啊？

问题 不定式作定语用主动式还是被动式

That is a question to be worked out. 句中的不定式用被动式对不对？因为 work out question没有主语？

问题 句末的“动词+介词”（后面可以不加成分吗）

I member a very superior young man who found three little girls extremely tiresome to deal with.疑问：经常看到这样句尾一个动介词组（动词+介词），请问它后面不是一定要加成分么？

问题 to be disappointd在句中作什么成分

There's no reason to be disappointed. As a matter of fact, this could be rather amusing.to be disappointd 在句中作什么成分？

问题 长难句分析

While in America the  trend started as a reaction to the economic decline—after the mass redundancies caused  by downsizing in the late '80s—and is still linked to the politics of thrift,in Britain,at least among the middle class downshifters of my acquaintance,we have different re...

问题 usually 后是同位语还是省略句

Above the gate is a horizontal scroll bearing an inscription,usually an auspicious phrase. 翻译：在门上面的横批通常是一个吉祥的短语。usually前为什么不加and,是因为后面是同位语吗？

问题 如何理解句中的 of which(如何翻译)

If some one loves a flower, of which just one single blossom grows in all the millions and millions of stars.请问应如何理解句中的 of which? 如何翻译? 谢谢了!

问题 非限定动词时间问题

The continent’s museums are still coming up with good reasons to get you on a plane.不定式是发生在谓语时间之后的动作，那么我想问这个谓语指的是谓语中的助动词还是整个谓语部分（包括非限定动词在内的谓语部分）.上句中的非限定动词to get...

问题 非谓语动词的时态与被动语态

Mark often attempts to escape         whenever he breaks traffic regulation.A.having been fined B.to have been fine C.to be fined D.being fined请老师详细讲解这道题，尤其是C,D选项，为什么不能选C而选D啊？

问题 如何理清并列句结构

请问给位老师：Sex determination in fish is a very flexible process with respect to evolutionary patterns observed among genera and families, and within individuals is subject to modification by external factors.句中 and 部分和前面的哪一部分并列？我在阅读时碰到较为复...