单项选择题

You ______ talk so loud in the library.

A．needn't
B．may not
C．mustn't
<上一题 目录 下一题>
热门 试题

单项选择题
I want to have some ______, please.
A．potatos
B．tomatos
C．oranges
单项选择题
Is a dog ______ animal
A．the
B．an
C．/
相关试题