提出环保建议的表达方式 — 英语词汇题
题目
根据句意和中文提示或首字母补全单词。
1. We should r______（减少）air pollution by taking buses instead of cars.
2. Please turn off the lights to save e______（能源；能量）.
3. It's a good idea to r______（回收利用）waste paper and bottles.
4. Don't throw rubbish everywhere. Keep the environment clean and p______（无污染的）.