题目内容
5．Linda has to practiceplaying （play）the piano every day．分析 Linda每天都要练习弹钢琴．
解答 答案：playing
联系语境，根据关键词practice在此句中为动词"练习"，结合提示词play也为动词，可知此处应该用固定短语practice doing sth"；练习做某事"来表达；play的动名词为playing，这里指练习弹钢琴，符合意义及用法．故填：playing
点评 此题考查固定短语的用法．做题时抓住关键词确定出正确的固定短语，再对动词作出相应的改变．
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