Unit 2 Repeat these three words daily:reduce reuse and recycle.基础篇一、单项选择。1.The government in china has ended its one-child ________ and let one family have two children.A. policy B. step C. method D. road【答案】A【解析】句意:中国政府已经结束独生子女政策, 让一个家庭有两个孩子。A. pol...