问题 选择题

______ you understand it, it’s easy for you to obey it.

A.As soon as

B.Once

C.Unless

D.The moment

答案

答案:B

考查连词。As soon as一……就;Once一次,一旦;Unless 除非;The moment立刻,一……就。句意:一旦你明白了,你就容易遵守它。故选B。

单项选择题
单项选择题