题目内容：

The police in London were searching for a thief. At last they caught him.  But while they were taking photos of him from the front, from the left to the right, with a hat and without a hat, he suddenly hit the policemen and ran off. The police try to catch him but he got away.

Then a week later, a telephone rang in the police station and somebody said,  "You are searching for a thief, aren't you?"“Yes.”"Well, he left here for Water bridge an hour ago. " The police in London at once sent four different photos of the thief to the police in Water bridge.

About ten hours later, the police in London got a telephone call from Water bridge."We have caught three of the man," they said happily,"and we'll catch the fourth this evening, we think. "

1.In the sentence "The police in London were searching for a thief. " "searching for"means    .

A. find    B. looking for    C. look at    D. look after

2.The police in London took photos of the thief     ．

A. two    B. three    C. four    D. five

3.According this passage，which of the following is TRUE?

A. The thief left Water bridge for London．

B. The police caught many thieves in London。

C. The police in London tried to catch the thief with a hat．

D. The police in London kept searching for the thief．

4.Water bridge is a      ．

A. river    B. bridge    C. place    D. policeman

5.The best title(标题)for this story may be      ·

A. Several Thieves    B. Police and Thieves

C. Four Thieves    D. The police in London