Some young Cambodians are learning a new sport — skateboarding. Fifteen-year-old Chea Sophanit 1 (skate) for about six months. “When I see the different skaters, I just want to be like 2 .” he says. Sports like boxing and soccer are wildly popular in Cambodia, 3 Chea says skating has already bee his favourite sport.
4 nongovernmental organization called Skateistan Cambodia organizes 5 (week) programs at the park. Skateistan Cambodia started its work in Afghanistan. Rory Burke works with the group, 6 expanded to Cambodia later. He says learning to deal 7 difficulties is part of the lesson for these young skateboarders.
Seventeen-year-old Sang Rotha began skateboarding more than a year ago. “Sometimes I don’t do well 8 subjects like math,” he says. “I feel bad when I find 9 hard to keep up with my lessons.” Before he started training, it seemed very easy. But it was very difficult to learn tricks, and he got hurt a lot from falling off. 10 (learn) skateboarding has taught him to face difficulties and challenges.has been skating
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(答案→)has been skating
解析：
【小题1】has been skating 根据本句的for about six months说明这6个月来一直在做的事情，所以使用现在完成进行时的时态来表示。
【小题2】them 这里的them就是指前面的the different skaters。
【小题3】but 上下文之间存在转折关系。上句说足球和拳击很流行，但是他说滑板是他的最爱。
【小题4】A 这里的a表示泛指，一个被称为Skateistan Cambodia的非政府组织。
【小题5】weekly 用形容词weekly来修饰program。Weekly指每周的，一周的；
【小题6】which 本句是一个定语从句，which指代非限制性定语从句，在句中做主语。
【小题7】with 固定词组deal with…处理，对付。
【小题8】in 固定词组do well in…在…表现好。
【小题9】it 本句的it是形式主语，真正的主语是后面的不定式to keep up with my lessons
【小题10】Learning 本句中的动名词learning skateboarding在句中做主语。