题目内容：

It was a cold winter night when the police officer Lee and the detective Smith were walking back to the police station. They saw a robber attacking an old woman on the road. Lee and Smith ran over to the robber immediately.

The robber saw them and ran away as fast as he could. Lee and Smith followed him for a long distance until the robber rushed into an underground station. Lee and Smith ran into the station and tried to find him. It was quite dark outside that night and they couldn't see the robber clearly. But they remembered what his body shape was like.

When they went in, they saw six men in the station All of them had the similar build as the robber. Lee looked at them carefully, one by one.

The first man was arguing with an underground station worker. He seemed to be very depressed.

The second one was watching the fight between the first man and the worker. It seemed like he was quite interested in it.

The third one was quietly reading a newspaper. His face was hidden behind the newspaper.

The fourth one was running to warm himself up, as it was cold in the station.

The fifth one was waiting for the underground. He looked at his watch several times. He seemed to be in a hurry.

The sixth one was wearing a big coat, sitting on a bench and shivering.

Lee finally found out which one the robber was. He whispered to Smith, "Look! The robber wanted to cover up his panting (气喘吁吁) by doing this. "

1.As soon as Lee and Smith saw the robber attacking an old woman, they _________.

A. walked back to the police station B. ran to catch the robber

C. ran into the underground station D. kept away from the robber

2.The robber rushed into the underground station to _________.

A. escape from them B. meet his friends

C. rob others D. take an underground

3.The underlined word "depressed" in Paragraph 4 means" _________"

A. relaxed B. unhappy C. thoughtful D. comfortable

4.The six men in the underground station all had the similar_________.

A. hair B. height C. body shape D. age-group

5.According to Lee, _________was the robber.

A. the first man B. the second man C. the fourth man D. the sixth man

6.What's the best title for the article?

A. A dramatic robbery. B. The clever detective.

C. The proud policeman. D. The hidden robber.