Many students is not sure what to at the university;they can’t make up theirmind about the

问题补充：

Many students is not sure what to at the university;they can’t make up their

mind about their future.

A. take up

B. make up

C. pick up

D. build up

答案：

A. take up

B. make up

C. pick up

D. build up

解析：题意：很多学生在大学里不知道学什么，对自己的未来他心里还没有底。take up开始学；开始从事。make up组成，构成；编造；pick up拾起；学到；获得；build up逐步建立；增强。