单选题 ______ in the regulations that you should not tell other people the password of your email account.
【正确答案】 C
【答案解析】[解析] 考查语法。本句意为“规章制度里要求，你不能告诉他人你电子邮箱的密码”。题干中暗含一个虚拟语气，It is required后所接的that从句的谓语动词用“should+动词原形”，should可以省掉。