国家开放大学《人文英语 3》形考任务(单元自测 1)参考答案 单元自测 1 一、选择填空,从 A 、B、C 三个选项中选出一个能填入空白处的最 佳选项。(每题10 分 1、—Do you have much experience with caring for babies? — . A. Yes, I do. I often take care of kids in my free time. B. No...