_______ 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
B
【详解】
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。
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