单选题Some policemen should be&

问题补充：

单选题Somepolicemenshouldbesentto_______them_______theanimals.A.prevent; to killB.stop; killingC.keep; to killD.keep; killing

答案：

B解析句意：警察应该被派去阻止他们杀害动物。阻止某人做某事，用stop…(from)doing;prevent…(from)doing;keep…from doing.所以选B。