涛涛GWD8套(好像CD很少讨论过)

GWD8-Q18:

Yellow jackets number among the 900 or so species of the world’s social wasps, wasps living in a highly cooperative and organized society where they consist almost entirely of females—the queen and her sterile female workers.

1. wasps living in a highly cooperative and organized society where they consist almost entirely of

2. wasps that live in a highly cooperative and organized society consisting almost entirely of

3. which means they live in a highly cooperative and organized society, almost all

4. which means that their society is highly cooperative, organized, and it is almost entirely

5. living in a society that is highly cooperative, organized, and it consists of almost all

想请教18题的谓语是哪个？

GWD8-Q19:

Though subject to the same wild-animal control efforts that killed off almost all the wolves in North America over the past century, the coyote’s amazing ability of adapting to the presence of humans has enabled it to expend its range into Alaska and Central America.

1. coyote’s amazing ability of adapting to the presence of humans has enabled it to expend its

2. coyote, because of its amazing ability of adapting to the presence of humans, have been able to expand their

3. coyote, because of its amazing ability to adapt to the presence of humans, has been able to expand its

4. amazing ability of the coyote to adapt to the presence of humans have enabled it to expand the

5. amazing ability of the coyote to adapt to the presence of humans has enabled it to expand the

C和E该如何取舍呢。

A.     Minivans carry as many as seven passengers and, compared with most sport utility vehicles, cost less,

B.     Minivans, which carry as many as seven passengers, compared with most sport utility vehicles, they cost less,

C.     Minivans carry as many as seven passengers, in comparison with most sport utility vehicles, and have a lower cost, they

D.     Minivans, carrying as many as seven passengers, compared with most sport utility vehicles, cost less,

E.      Minivans, which carry as many as seven passengers, compared with most sport utility vehicles the cost is lower, and they

这到的A和D该怎么分呢，谢谢。