题目内容：

    One morning while Officer Vogel was on his coffee break in a restaurant, a man ran in and yelled. “Officer! A little kid is driving a car down the street!"

He ran out at once and saw a car going slowly--about 25 miles an hour--but it wasn’t going very straight. He jumped into his police car and followed it. When the car was stopped, Officer Vogel looked inside. The driver was a little boy. His name was Rocco Morabiro and was 5. In the back seat was his two-year-old sister. Both children were crying.

"I want my mummy!" the boy cried."But she can't get here. I have the car.” Then he had an idea."Just a minute." He told Officer Vogel."I can drive. I'll go to get her.”

“No!" Officer Vogel said. “You stay with me!" Then he drove them to the police station and he called their mother. They had many questions for Rocco. The first question was: "Where did you get the car keys?"

Rocco said. ”From the top of the refrigerator."At seven that morning Rocoo's father was at work and his mother was sleeping, Rocco saw the keys on top of the refrigerator. He climbed on a chair, and took the keys.

Rocco got into the car and started the engine (引擎). When Rocco's sister heard the engine she ran to the car and cried. She wanted to go with him.

It was 7 a. m.---rush hour---so there was much traffic. Rocco drove one mile in heavy traffic. Then Officer Vogel stopped him.

Newspapers and TV stations heard about Rocco, and a lot of reporters went to his house. A reporter asked Rocco, “What do you want to be when you grow up?"

“A truck driver,"he said, smiling.

1.Rocco's car was not going straight because of ________.

A.the heavy traffic B.his little sister C.his driving skills D.officer Vogel

2.The little sister's going with Rocco showed that ________.

A.she was afraid the would have no one to play with B.she didn't want to wake her mother up

C.she wanted to look for her father D.she wanted to drive the car too

3.The officer asked Rocco to stay with him in order that ________.

A.other cars would go much faster B.he would drive them home

C.Rocco would not cause any accident D.Rocco's sister would not feel alone

4.Rocco and his sister were taken to the police station to ________.

A.have a good breakfast B.learn some traffic rules

C.answer the policeman's questions D.wait for their mother and deal with the matter