阅读理解。 I was parked in front of the mall wiping off my car．I had just come from the car wash and was waiting for my wife to get out of work． Coming my way from across the parking lot was what society would consider a bum ．From the looks of him, he had no car, no home, no clean clothes, and no money．There are times when you feel generous but there are other times that you just don't want to be bothered．This was one of thos e 'don't want to be bothered times'． ' I hope he doesn't ask me for any money,' I thought． He didn't．He came and sat on the edge of the pavement in front of the bus stop but he didn't look like he could have enough money to even ride the bus．After a few minutes he spoke． 'That's a very pretty car,' he said． He was in rags but he had an air of dignity around him．His badly-grown blond beard kept more than his face warm． I said, 'thanks,' and continued wiping off my car．He sat there quietly as I worked．The expected plea(乞求) for money never came．As the silence between us widened, something inside said, 'ask him if he needs any help．' I was sure that he would say 'yes' but I held true to the inner voice． 'Do you need any help?' I asked． He answered in three simple words that I shall never forget．We often look for wisdom in great men and women．We expect it from those of higher learning and achievements．I expected nothing but an outstretched dirty hand．He spoke the three words that shook me． 'Don't we all?' he said． 1. Why did the writer parked his car before the mall? A. Because he wanted to pick up his wife． B. Because he wanted to show off his car． C. Because he wanted to wipe off his car． D. Because he wanted to do some shopping． 2. Which has the closest meaning to the underlined word ' bum ' in Paragraph 2? A. dustman B. driver C. beggar D. robber 3. Which is the best title for this text? A. A good husband B. Didn't he need help? C. Don't we all? D. One should be generous