III,选择合适的词并用其适当形式完成句子4

问题描述:

III,选择合适的词并用其适当形式完成句子4
principle ; rule
(1) You should obey the ___ of the game once you join in it.
(2) He insisted the ____ that everyone should be treated fairly.

rule   规则:一旦参加比赛,你(们)就应该遵守比赛规则.obey the rule是固定搭
   2. principle  原则:他坚持每一个人都应该平等对待的原则.是固定搭配