1.We could ask someone to do the work privately without it__

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1.We could ask someone to do the work privately without it____.
A) know 　　B) be known 　　C) being known 　　D) to be known
我这参考答案是C,网上查询有人选D,到底是哪个答案对,
2.The reason for all the changes being made ____to us yet.
A) has not explained 　　B) has not been explained
C) did not explained 　　D) were not explained
我这参考答案是B,还有这里的being是个什么用法,为什么选B,

1 准确答案选C
这个题其实是在考without结构,我们可以类比with的用法
如果把它独立出来就应是：it is known但是因为用了without使它成了句子的状语,它就不能再用is形式,而应用分词形式来降级,所以把is改成being
2 选B当然是正确的
这个句子的主语是the reason,后面的yet说明应用完成时,reason与explain是被动关系,所以B很好选出来,关键是being的用法
这个句子的主干是：The reason has not be explained yet,for all the changes being made是定语修饰reason的,而being made是修饰changes的,首先我们知道,非谓语动词是可以作定语的,包括现在分词,过去分词和不定式,现在分词表主动进行,过去分词表被动完成,changes与make是被动关系,所以用made,但这里为什么要加being呢?这就是一个很灵活的用法了,语法书上是不会讲的,全靠自己迁移运用.这里其实是迁移了被动语态的进行时,由这个句子
The changes are being made 迁移而来,它在这里加上一个being只是为了突出这是变化是正在做出的.
不知道我给你讲懂了没有?

We could ask someone to do the work privately without( )(kno We could ask someone to do the work privately without it---- It is not polite to ask someone to do something without sayi it is impolite to ask someone to do something without saying If someone is smoking on the bus,we should ask,"Could you pl You had better ask someone to do this work quickly.同义句 Someone will tell you how to do the work 1.I'll have someone ______ you do the work.A.to help B.help We have only_____hour to do the work. we found the work hard to do . __ he fail to come over,what could we do without him?For you Tom r----- to do the work,so I had to ask John to do it inst