分析OG11发现的一些语法小问题，带一定趣味性，难度递增，大家可以进来看看是不是都知道！！顺便帮帮我解答...（问题1－10）

SVO, and SVO, and SVO  还是 SVO , SVO , and SVO ? 第二个主句前的and 可以省略吗？？
                                            

问题2

be able to do and can do 是否是一个典型的平行结构呢？
                                                

问题3 （OG11-36）
                                            

so as to 这个结构是不是永远都是错的呢？（注意和so...as to 区分..）
                                            

问题4  主谓一致：
                                            不可数名词 and 不可数名词——谓语用单数还是复数呢？
                                            

问题5   A and B that ...此处的A,B是名词， that 是就近指代B还是指代A和B还是都可以呢？涉及到了后面的主谓一致
                                            

问题6  分词做后置定语可以跳跃修饰吗？ the evidence of extinction supporting the theory...是否可以？
                                            

问题7 （ OG11-22）
                                            

22. The end of the eighteenth century saw the emergence of prize-stock breeding, with individual bulls and cows receiving awards, fetching unprecedented prices, and excited enormous interest whenever they were put on show.

问题：此处的saw是什么成分什么意思呢？？
                                            

问题8  yet 前是否一定有“,”
                                            呢？
                                            

From the bark of the paper birch tree the Menomini crafted a canoe about twenty feet long and two feet wide, with small ribs and rails of cedar, which could carry four persons or eight hundred pounds of baggage yet was so light that a person could easily portage it aroud impeding rapids

OG的解释有时候是自相矛盾的，看到此题前我一直简单的认为yet前有逗号...

问题9  OG11-86

 Although early soap operas were first aired on evening radio in the 1920's, they were moved to the daytime hours in the 1930's when the evening schedule became crowded with comedians and variety shows

已经代入正选，想问为什么Although 从句时间（1920）在主句时间（1930)前而不用过去完成式呢？
                                            

问题10  OG11-76

76. Never before had taxpayers confronted so many changes at once as they had in the Tax Reform Act of 1986.

A.  so many changes at once as they had in

B.  at once as many changes as

C.  at once as many changes that there were with

D.  as many changes at once as they confronted in

E.  so many changes at once that confronted  them in

正选是D

主句倒装，但是注意是否定，为什么不用so....as 来代替as...as ？还是说as...as 可以通用肯定否定形式呢？
                                            

问题11  OG51

 The Olympic Games helped to keep peace among the pugnacious states of the Greek world in that a sacred truce was proclaimed during the festival's month.

A  world in that a sacred truce was proclaimed during the festival's month

B  world, proclaiming a sacred truce during the festival's month

D  world, for a sacred truce was proclaimed during the month of the festival

正选B

想知道此处proclaiming 为什么不会引起修饰world 和主语Olympic Games发出伴随动作的混淆呢？
                                                

OG11说 in that 过于正式不好，但是很多正选是in that ，是不是OG11解释有错呢？？
                                            

不敢一下问太多，怕大家眼睛花，反正看到有知道的就告诉我吧，对我都是很大的帮助，因为水平实在有限，问的问题有点那个..希望大家能谅解，先谢过大家了！剩下的问题我也会尽快贴出的还希望大家支持啊！！