问题补充:
While studying, fix your mind on what is really important, or you will remembering nothing.
A. pick up
B. take up
C. bring up
D. end up
答案:
A. pick up
B. take up
C. bring up
(答案→)D. end up
解析:考查词组:A. pick up捡起,习得B. take up 从事,占据C. bring up养育, D. end up结束,句意:在学习的时候专注于重要的事情,否则最后你什么也记不住。选D。