1. (2022八下·余姚竞赛) 用方框中所给单词的适当形式填空，每词限用一次。(每空一词）

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Taking a bus or subway, making payments online, or just walking, these daily activities can help turn China's deserts into forests if you are using Ant Forest. Ant Forest is a feature in the Alipay mobile payment App. It keeps a of users' low carbon (低碳的) activities, such as taking a bus to work instead of . And it gives users green energy. When the user's green energy gets high, Ant Forest and its partner will plant a real tree for the user. About half a billion people have used Ant Forest it came out in August, 2016. Ant Forest received the champions of the Earth Award (地球卫士奖), the UN's environmental honor, for encouraging people to live greener lifestyles and protect the environment.