【正文】
you need to know how to use a bow and arrow. ___ 3 1 4 2 20 km race walk floor exercises springboard dive horizontal bar 200 m butterfly water polo platform dive 100 m sprint Balance beam high jump discus throw parallel bars Track and field events gymnastics Water sports javelin throw asymmetric bars 100 m freestyle 20 km race walk 100 m sprint high jump balance beam floor exercise horizontal bar parallel bars 200 m butterfly platform dive springboard dive water polo discus throw Put the Olympic events into the correct categories.