6. In June of 1989, Princeton Township approved a developer's plans to build 300 houses on a large portion of the 210-acre site of the Battle of Princeton, one of only eight Revolutionary War battlefields that had remained undeveloped.
(A) one of only eight Revolutionary War battlefields that had remained undeveloped
(B) one of eight of the only Revolutionary War battlefields that have remained undeveloped
(C) one of the only eight undeveloped Revolutionary War battlefields that remains
(D) only one of eight Revolutionary War battlefields to remain undeveloped
(E) only one of the eight remaining undeveloped Revolutionary War battlefieldsffice ffice" />
我听过白勇的讲课了，但是他说the only eight ....意思成了仅有的8个。。。。听得一头雾水，这道题我老觉得c是对的，谁能帮我讲一下？？？先谢谢了！
8. One of the most powerful driving forces behind recycling is the threat of legislation that would quire companies that they take more responsibility for the disposal of its products.
(A) that they take more responsibility for the disposal of its products
(B) that they should take more responsibility for disposing of products
(C) having to take more responsibility for disposing of their products
(D) to take more responsibility for the disposal of their products
(E) taking more responsibility for their product's disposal
还有这个题目，第一句one of the most+n(pl)后面的谓语用单数吗？？
[em12] | 
