To good relationships with your teachers and classmates you should learn to be on good t

问题补充：

To good relationships with your teachers and classmates, you should learn to be on good terms with them.

A. bring up

B. add up

C. keep up

D. take up

答案：

A. bring up

B. add up

(答案→)C. keep up

D. take up

解析：考查常见动词短语。语境表示“保持/维持”好的人际关系，因此选C。