最好有解析.

题目

最好有解析.
Here we found little snow,as most of itseemed( )blown off the mountain.
to have been to be that it was that it had been
There are 4 factories in ourinstitute,( )
each to have over 100 workers
each having over 100 workers
which there are over 100 workers
with each that has over 100 workers
If the United State had bulit more homesfor poor people in 1995,the housing problems now in some parts of thiscountry( )so serious.
wouldn’t be
will not have been
wouldn’t have been
would have not been
It is fairly common in Afica forthere( )an ensemble of expert musicianssurrounded by others who join in by clapping,singing,or somehow adding to thetotality of musical sound.
to be being to have been having been
( ),I will take her as my wife.
Were she rich or poor
Being rich or poor
Be she poor or rich
Whether is she poor or rich

答案

to have been,seem to do sth因为 found ,所以用to have been
each having over 100 workers 独立主格结构,公式是：名词/代词 + 分词 + 其它each代词作逻辑主语 having 现在分词over100 workers名词短语作分词的宾语
wouldn’t be,前面的假设是在过去.但结果却是在现在(the housing problems now)所以应该用对现在虚拟的结果句中的虚拟语气结构,即情态动词+动词原形.
to be 用在It be + adj.for...to do sth的结构中
Be she rich or poor 为倒装结构完整形式为：however rich or poor she is； 或者 No matter how rich or poor she is.