根据课文内容填空

Li Hua plays football every day. In his _____小题1:_____ time, he studies English. He also enjoys _____小题2:_____ to music. It makes him _____小题3:______.

当沸腾床干燥器床层膨胀至一定高度，气流速度上升，颗粒又重新落下，不致被气流所带走。