太平洋岛国瑙鲁将举国迁往澳大利亚，据所学知识分析其被迫迁移的原因是（ ）
A：与周边国家战争不断
B：其磷酸盐矿产开发殆尽
C：由于生态环境恶化产生生态难民
D：由“冷冻地带”向“阳光地带”迁移
A. Nice to meet you, too
B. My name is Sarah.
C. Thank you.
D. Hi, I'm Amy.
Since last April, ____ shared bikes to schools, workplaces or to go sightseeing.
