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备战2019高考英语专题练习-完型填空-社会现象类（含答案） 一、完形填空 1. （ 20分 ） 完形填空 Human growth is a process of experimentation, trial, and error eventually leading to wisdom. Each time you choose to trust yourself and take action, you can never quite be certain how the situation will 1 Sometimes you are victorious, and sometimes you become disappointed. The 2 experiments, however, are no less valuable than the experiments that finally prove successful； i