_______intheregulationsthatyoushouldn’ttellotherpeoplet...

来源：语文精选馆 1.45W

_______ in the regulations that you shouldn’t tell other people the password of your e-mail account.

A．As is required B．It is required

C．It requires D．What is required

考查固定句型和it做形式主语。句意：根据规定，你不应该告诉别人你电子邮件账户的密码。固定句式：It is required that…“据要求，根据规定”，it在句中作形式主语，真正的主语是后面that引导的主语从句。故选B。