单项选择题

Why must the workers wear thick glasses

A．To see clearly.
B．To protect them from dust.
C．To protect them from bad light.
<上一题 目录 下一题>
热门 试题

单项选择题
Has the man ever been to the farm
A．No, never.
B．No, but he will.
C．Yes, he has.
单项选择题
If you want to make friends, the first step to make is to ______.
A．go to others and shake hands
B．go to others and say "Hello"
C．remember people’s names
相关试题