摘要： Don’t w water. Please turn off the cock after you wash your hands. 2. Gold, silver and iron are all m . 3. It’s more and more important for everyone to save e now. 4. Air p is quite harmful to our health. 5. The students from a green school are helping collect waste paper and bottles for r .
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词.
词.1. Don't w________ water. Please turn off the cock after you wash your hands.
2. Gold, silver and iron are all m_______.
3. It's more and more important for everyone to save e_______ now.
4. Air p_______ is quite harmful to our health.
5.The students from a green school are helping collect waste paper and bottles for r________.
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2. Gold, silver and iron are all m_______.
3. It's more and more important for everyone to save e_______ now.
4. Air p_______ is quite harmful to our health.
5.The students from a green school are helping collect waste paper and bottles for r________.