—What's the ________of traveling by bike? —It can save money，keep healthy and not pollute the air. A...
2022-10-15 13:08:39 30次 2018年秋人教版九年级英语下册（山西）习题：Unit13 1第一课时 单选题 反馈错误 加入收藏 正确率 : 100%
题目内容：
—What's the ________of traveling by bike?
—It can save money，keep healthy and not pollute the air.
A. purpose B. suggestions C. advantages
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