基本信息
英语选修6外研版module1同步知能强化训练(答案) ⅰ.完成句子 1.________ ________(碰巧),we were studying economics at the same college. 答案:by coincidence 2.he finds it hard to ________ ________ ________ ________(集中注意力于) one thing for longer than five minutes. 答案:focus his thoughts on