问题
选择题
---You have made great progress in your English study, 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
答案
答案:C
考查remain的用法。remain是不及物动词,故排除B、D,根据意思,很多事情有待于被解决,故选C。