To succeed in a difficult task,( ) A)one needs to work hard B)to work hard is needed C)you need be

问题描述:

To succeed in a difficult task,( ) A)one needs to work hard B)to work hard is needed C)you need be
C.you need be a hard working person D.to work hard is what one needs

to succeed in a difficult task是目的状语,而全句仍然缺少主语,A和C都有主语,但是C中need be用法错误,应是need to be,因此只能选A.