题目内容

根据句子意思完成已给出首字母的单词。
1. China has the l___________ population with 1.3 billion.
2. Chen Jun said that Project Hope had c                     his life.
3. Can the homeless people get good food and m____________ treatment?
4. Walking or riding a bike will save energy and r____________ air pollution.
5. Almost everyone knows that air pollution is h____________ to people's health.
1. largest  2. changed  3. medical  4. reduce  5. harmful
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