完形填空:先通读下面的短文，掌握其大意，然后从各小题所给的四个选项中，选出一个最佳答案。共15小题，计15分。 One day a young man came to a___.He asked the teacher to___ him to be brave勇敢的,because he thought he wasn’t brave enough.The teacher said,“I’ll teach you ._ __you should do one thing.You should live in a big____next month.To every passing person in the street,you should___ straight into their eyes and tell loudly that you’re a brave man.” The man got really____,because it seemed very difficult to him.But he must do,because he wanted to be brave. At first, when meeting the passingers过路人in the city,he was____ and couldn’t speak any word. But he had to keep his____,so he began trying to speak the words. Each time,his voice声音sounded___ and clearer.The more he kept on doing these,the___confident自信的 he was.He was happy to see he was becoming brave. A___ passed,the man came back to the teacher,“Thank you,teacher. I ___ finished my work.Now I’m not afraid anymore.But____did you know that this would help me?”The teacher smiled,“It is only a habit.If you are afraid to do__,you shouldn’t run away from it.You should try to___it.This way makes you be brave.”