The disappearance of dinosaurs made the evolution and dominance of mammals on the earth.
A. it was possible
B. it possible
C. possible to be
D. possible
网友回答
A. it was possible
(答案→)B. it possible
C. possible to be
D. possible
解析：此题考查：made it possible ，it 做形式宾语，真正的宾语是后面的名词短语，此类结构还有：find/think/make + it +形容词/to do/that 从句，所以选B。