题目

Robert Moody, 52, is an experienced police officer. Much of his work involves dealing with  1  an gang （团伙）problems in the schools of his community. Knowing that many kids often  2  trouble, he decided to do something about it. So in 1991 he began to invite small groups of kids to go fishing with him on his day 3   . Those fun trips had a（n） 4  impact. A chance encounter in 2000 proved that. One day,   5  working security at a school basketball game, Moody noticed two young guys  6  .He sensed trouble between them.  7   one of them headed toward Moody and gave him a 小丽拿着钱去买一件60元的棉衣，准备送给灾区的小朋友，可以怎样付钱？1张50元、3张20元、6张10元