The order came that the enemies in two hours.
A. would be defeated
B. should defeat
C. should be defeated
D. must be defeated
网友回答
A. would be defeated
B. should defeat
(答案→)C. should be defeated
D. must be defeated
解析：考查同位语从句。句意“命令传来，‘敌人必须在两个小时内被打败。”that引导的是order的同位语从句，是对order的补充说明。类似的词还有idea，report，news，word，question等。should表示给出指示或公布官方命令，意为“应该，必须”，故选C。