阅读理解。 David got a job in a police station after he left school. He worked there for 42 years and he'll retire this year. He worked hard in the past 42 years. But he was not a lucky man. He failed to catch a thief. He was often sorry for it. Last weekend, while David's wife was cooking she found there was no salt at home. So she asked her husband to buy some. In the shop, David saw a young man taking away a wallet from a woman's bag. He walked to him quietly, but the young man noticed David and ran away at once. David ran after him. At last the thief ran into a blind alley (死胡同) and David caught him. 'Please give me a chance, sir.' said the thief 'Who can give one to me?' said David, 'I'll soon retire and I catch a thief for the first time!' (     )1. David worked hard in the past 42 years. (     )2. David was a lucky man, and he often caught thieves. (     )3. Last weekend his wife asked him to buy some sugar. (     )4. A young man was stealing a woman's wallet in a shop. (     )5. The young man was the first thief that David caught.