In order to continue to learn by ourselves when we have left school, we must learn how to study in the school now.
A. in all
B. after all
C. above all
D. at all
网友回答
A. in all
B. after all
(答案→)C. above all
D. at all
解析：本题的四个选项都是all有关的短语。A总共，共计；B终究，毕竟；C首先，最重要的是；D根本，全然（常常和否定词连用）。句义：为了在毕业以后能够自学，首先在学校里我们要学会如何学习。根据句义说明C正确。