英语 六年级 填空题 简单

then and now对比表达 — 英语填空题

译林版·英语(三起) Unit 8 Then and now AI 三重审校通过

题目
请根据 then and now 的对比,用 can / can't / could / couldn't 填空(每空一词):My uncle ___ swim twenty years ago, because he was afraid of water. Now he is a good swimmer, so he ___ swim very fast.