In England nobody under eighteen years old is allowed (允许) to drink in a bar (酒吧)．
Mr Thompson often went to a bar near his house．But he never took his son, Tom, because he was too young．Then when Tom had his eighteenth birthday, Mr Thompson took him to his usual bar for the first time．They drank for an hour．Tom drank a bit．Then Mr Thompson said to his son,“Now, Tom, I want to teach you a useful（有用的） lesson．How do you know when you’ve had enough（足够的）? Well, I’ll tell you．Do you see those two lights（灯） at the end of the bar? When they seem（好象） to become four, you’ve had enough and should go home．”
“But, Dad,” said Tom, “I can only see one light at the end of the bar．”
Young people ______ allowed to drink in a bar until eighteen．

A．is not

B．are not

C．may

D．must

When Tom was_______, his father often went to a nearby bar without taking him．

A．a girl

B．man

C．woman

D．a child

On Tom’s eighteenth birthday, he drank together with his father in that bar for ______．

A．the first time	B．once
C．many times	D．eighteen times

Father wanted to tell his son ______．

A．the time to drink

B．something about the light

C．when to stop drinking

D．something about the bar