谈论保护环境的行为 — 英语词汇题
题目
根据中文提示补全单词，注意单词拼写完整正确。
1. We should t__n off the lights when we leave the room.（关掉）
2. Don't waste water. Please save every d__p of it.（滴）
3. We can r__de bikes to school to keep the air clean.（骑）
4. Please put the rubbish into the bin to keep our city cl__n.（干净的）