Tosucceedinadiffculttask,_______A:o 理由

热心网友

选A.若为B.或D.则为祈使句,应该删去to在A.和C.中均做实义动词,应有to ,所以排除C.原句 = (In order) to succeed in a diffcult task,one needs to work hard.

热心网友

A