标题: OG 118 OG 强攻第六天 [打印本页] 作者: Richardyu 时间: 2011-12-6 09:23 标题: OG 118 OG 强攻第六天 118.The World Wildlife Fund has declared that global warming, a phenomenon most scientists agree to be caused bv human beings in burning fossil fuels, will create havoc among migratory birds by altering the environment in ways harmful to their habitats.
(A)a phenomenon most scientists agree to be caused by human beings in burning fossil fuels,
(B)a phenomenon most scientists agree that is caused by fossil fuels burned by human beings,
(C)a phenomenon that most scientists agree is caused by human beings' burning of fossil fuels,
(D)which most scientists agree on as a phenomenon caused by human beings who burn fossil fuels,
(E)which most scientists agree to be a phenomenon caused by fossil fuels burned by human beings,