Mr. and Mrs. Smith have just opened a small restaurant. In order to attract customers, the

Mr. and Mrs. Smith have just opened a small restaurant. In order to attract customers, they put a notice in front of the restaurant, which said: “Meals on the house for three days.”
A foreign student who didn’t know much English passed by the restaurant on the second day. It was lunchtime and he felt hungry. “Well, here is a restaurant. I’m going to have something to eat,” he said.
He saw the notice when he walked towards the restaurant. “American people are really strange. They even eat dinners on the house! But how can I get onto the top of the house?” he asked himself.
He looked around and found a ladder（梯子）against a tree nearby. He was very glad. But as he reached the top, he heard someone shouting at him: “Hey, what are you doing up there?” Mr Smith was looking at him angrily. Beside him was a policeman.
“Doesn’t your notice say ‘Meals on the house for three days’? Is it just a joke?” the foreign student answered.
On hearing this, both Mr Smith and the policeman burst into laughter(开怀大笑). “Do you know what On The House means?”
Do you know the meaning of On The House?
【小题1】The Smiths have     .A．opened a restaurantB．built a houseC．climbed onto the topD．been policemen【小题2】The student walked past the restaurant     .A．when the Smiths started their businessB．when the Smiths put on the noticeC．when the policeman came to the restaurantD．when it was time to have lunch【小题3】The student      so Mr Smith shouted at him.A．was very hungryB．knew little about EnglishC．climbed onto the top of the houseD．took away the ladder【小题4】“On the house” may mean that the meal     .A．is had on the houseB．is paid on the houseC．is made on the houseD．is free for the customersA