He made up his mind ___hard from now on.A.studying B.study C.to study D.studies
问题描述：
He made up his mind ___hard from now on.A.studying B.study C.to study D.studies
因为据我所知的mind 的用法只能是mind doing sth,但答案却是C,是答案错了还是另有说法?
答
make up one's mind to do sth 下定决心做某事
可以问老师的嗷 笔记上应该有的.