—How do you study a test?I studyworkingmy classmates.A. for in withB. for by atC.

问题补充：

—How do you study a test?

--I studyworkingmy classmates.

A. for , in , with

B. for, by, at

C. for, by, with

D. of, in, by

答案：

A. for , in , with

B. for, by, at

(答案→)C. for, by, with

D. of, in, by

解析：how ,怎样，提问方式，你是怎样为考试而学习的？by doing sth,通过做……，for,对于，为了，with，和。我是通过和同班同学一起学习的。故选C