NN请进!!白勇164页29题,手敲录入,盼解答.

29 Once the economic and social usefulness of the motor car was demonstrated and with its superiority to the horse being proved, much of the early hostility to it in rural regions disappeared.
A. and with its superiority to the horse being.
B and its superiority over the horse had been
C and its superiority to the horse
D its superiority over the horse
E with its superiority to the horse having been

答案B.  我觉得C好..

问题有二:  1.感觉B是run-on sentence .见OG135

135. Intar, the oldest Hispanic theater company in New York, has moved away from the Spanish classics and now it draws on the works both of contemporary Hispanic authors who live abroad and of those in the United States.

(A)  now it draws on the works both of contemporary Hispanic authors who live abroad and of

(B)   now draws on the works of contemporary Hispanic authors, both those who live abroad and those who live

(C)  it draws on the works of contemporary Hispanic authors now, both those living abroad and who live

(D)  draws now on the works both of contemporary Hispanic authors living abroad and who are

(E)   draws on the works now of both contemporary Hispanic authors living abroad and those

In choices A and C, it intrudes between the halves of the compound verb has moved... and [now] draws to introduce a new grammatical subject, thereby creating a run-on sentence:  the inclusion of it requires a comma after classics to set off the new independent clause.

              2. 感觉C可以. 白勇的书里也说了,两并列句,第一句有be动词或become,第二句的be动词或become必须省略.见第167页. 34题.对应OG里的218题.

               3. 感觉B的时态不好.不对应.一个过去时一个过完时并列. 根据意思,并没有迹象表明要用过完. 我觉得是没有根据的。不好.

并列省略be动词是在主语一致的并列去中才能发生。

ＯＧ218. Despite protests from some waste-disposal compa­nies, state health officials have ordered the levels of bacteria in seawater at popular beaches to be measured and that the results be published.

(A)  the levels of bacteria in seawater at popular beaches to be measured and that the results be

(B)  that seawater at popular beaches should be measured for their levels of bacteria, with the results being

(C)  the measure of levels of bacteria in seawater at popular beaches and the results to be

(D)  seawater measured at popular beaches for levels of bacteria, with their results 　　（Ｅ）

(E)   that the levels of bacteria in seawater at popular beaches be measured and the results

Ｅ的主语不一致．省略了．

感觉不充分．　如果照这样说，was demostrated怎么不用过去完成时？