【题目】—You've made great progress in your studies of English, haven't you?
—Yes, but much .
A. remains to do B. is remained to do
C. remains to be done D. is remained to be done
在线课程【答案】C
【解析】
这题考查remain的用法，remain to be done“仍然要被做”，句意是：--你英语学习已经取得了很大进步，是吗？-是，但还有很多事还要被做。选C