Directions: There are 15 blanks in the following passage. For each blank there are for choices marked A ,B ,C and D. You should decide on the best choice and write the corresponding letter on the Answer Sheet. There were some new soldiers on the playground. They were being trained in modern 1 of fighting by their two teachers. They 2 how an unarmed(未武装的)man could trick (施诡计)an armed man and take his weapon away from him. First one teacher took a knife away from 3 , using only his hands, and that the other took a weapon away from him in the 4 way. After the lesson, and 5 they went on to train the young soldiers to do these things themselves, both of the teachers asked them a number of questions and wanted to see 6 they had understood what they had been shown. One of the questions 7 : " Well, you now know 8 an unarmed man can do against a man with a weapon. Now suppose that you are on duty on a big bridge 9 at night, and you have a weapon. Suddenly you see an unarmed solider 10 towards you. He wants to get your weapon. What will you do?" It was Tom's 11 to answer the question, he thought carefully for 12 seconds, and said, "Well, after what I have 13 seen, I think the first thing I would do would be to 14 my weapon into the river as quickly as I could so that the unarmed man couldn't take it away from me and 15 me with it. "