单项选择题
A．they will give three different answers B．they will see three different scenes C．they cannot see clearly D．they can only see the busy traffic
A．a slip of paper with which you are permitted to enter a theater B．a notice issued to someone who has violated a traffic regulation C．a slip of paper with which you can see a film D．a notice that shows your right to do something
A．a writer B．a student C．a scientist D．a policeman