- What do you often do classes to relax yourselves? -We often do eye exercises listen to

问题补充：

- What do you often do classes to relax yourselves?

-We often do eye exercises, listen to music or do some running around the school.

A. in

B. among

C. between

D. Through

答案：

A. in

B. among

(答案→)C. between

D. Through

解析：句意：在课间时间你们经常做什么来放松自己？我们经常做眼睛保健操、听音乐或者在学校周围跑跑步。两人的对话内容应该是课间空时间做什么；故选C。