【题目】Many students believe that the choice of their courses and universities should ________ their own interest.
A.be based on
B.base on
C.be basing on
D.base at

【答案】A
【解析】句意：许多学生认为他们对课程和大学的选择应该以自己的兴趣为基础。be based on固定短语，”以……为基础“，选A。