问题补充：
You should read some good books and they can a new world to you.
A. wake up
B. open up
C. get up
D. look up
答案：
A. wake up
(答案→)B. open up
C. get up
D. look up
解析：句意：你应该读一些好书，它们能给你展现一个新的世界。 wake up叫醒，open up 打开、展现，get up起床，look up查询；根据a new world一个新世界，可知是展现、打开，故选B.
