Our son doesn’t know what to at the university；he can’t make up his mind about his future.
A. take in
B. take up
C. take over
D. take after
网友回答
A. take in
(答案→)B. take up
C. take over
D. take after
解析：考察动词短语辨析。A吸收，理解，欺骗；B占据，从事于，开始做；C接管；D长得像…；性格类似…；句义：我的儿子不知道在大学里该干什么。对于未来他无法做出决定。根据句义本句中的take up表示从事于。故B正确。