教材回扣
Ⅰ.用本单元所学短语完成句子 1.Since then,many scientists have thought that our actions . (的确起重要作用). 2.It’s a good habit to keep everything (在适当的 位置) in your study. 3.I’m disappointed in Jason; he makes the same mistakes . (反复).
答案:1.do make a difference 2.in place 3.over and over again