To succeed in a difficult task,_____.A.one needs to work hard C.you need be a hard working person 选什么呢?
问题描述：
To succeed in a difficult task,_____.A.one needs to work hard C.you need be a hard working person 选什么呢?
答
选A.
如果选C,需要稍微修改一下：you need to be a hard working person.
情态动词need不能用在肯定句中.