Question

–What do you often do ________ classes to relax?
–Listen to music or walk around the school.
A. over     B. through     C. between 

Answer 1

C

介词辨析。Over越过；through 通过；between 在两者之间。句意；你在课间常常做什么来放松？结合语境可知本句指的是在两堂课之间，故选C。