凡输美日用陶瓷报检出口，必须在每一运输包装箱和零售包装箱外加贴有检验检疫机构认证工厂代号的CCIB“H”卫生标志。 ( )
参考答案：对
To celebrate the New Year, the students stayed in the classroom after school, _____ the performances and ______ the room.
A．practicing ; preparing
B．practiced ; prepared
C．to practise ; prepare
D．practicing ; prepared
—What do you mean by saying that?
—I think you _______ what I said. I meant no harm.
A．understood
B．misunderstood
C．heard
D．followed
