The scientist everyone our environment .A. urge; protectB. urged; to protectC. urges; pro

问题补充：

The scientist everyone our environment .

A. urge; protect

B. urged; to protect

C. urges; protect

D. urged; protect

答案：

A. urge; protect

(答案→)B. urged; to protect

C. urges; protect

D. urged; protect

解析：urged sb to do sth表示渴望做某事为固定词组搭配。故选答案为B