While studying， fix your mind on what is really important， or you will
remembering nothing.
A. take up
B. lead to
C. stick to
D. end up
网友回答
A. take up
B. lead to
C. stick to
(答案→)D. end up
解析：考查词组：A. take up占据B. lead to导致C. stick to坚持D. end up最终，后面搭配动名词，意为：以…告终，句意：学习的时候，专注于真正重要的事情，否则你什么也不记得。选D。