完形填空（共10题，每小题1分，计10分）阅读下面的短文，掌握其大意，然后从各题所给的四个选项中选出一个最佳答案 A little boy runs to a train station.is out of breath(上气不接下气) when hethere.the train leaves and the boy can’t catch （赶上）it. a man beside the boy. Heto the boy,“If you run faster, you can catch the train.” “I run as fast as I can.” says the boy. “Butare you late for the train?” asks the man. “I start too,” answers the boy. “, I should start early. Many young peopleat the beginning. They lose （失去）many good chances. They feelwhen it it too late.