【题目】_______ 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
在线课程【答案】B
【解析】
考查主语从句。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。