the answer is B,tell my why
题目
the answer is B,tell my why
to my satisfaction,i noticed that their work_____
B was being improved D had being improved
答案
was being improved 表示IMPROVE 的动作当时正在进行.had being improved强调已经完成,发生在过去的过去.improve 发生在notice之前
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点