To succeed in a difficult task,( ) A)one needs to work hard B)to _英语解答

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

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解答

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.