To good relationships with your teachers and classmates you should learn to share ups an

问题补充：

To good relationships with your teachers and classmates, you should learn to share ups and downs 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：短语辨析。 A. 养育 B. 合计 C. 保持 D. 开始从事。句意：为了保持和你的老师和同学们的关系，你应该……故选C。