I study my science test Thursday afternoon.A. at; onB. on; forC. for; inD. for; on

问题补充：

I study my science test Thursday afternoon.

A. at; on

B. on; for

C. for; in

D. for; on

答案：

A. at; on

B. on; for

C. for; in

(答案→)D. for; on

解析：study for“为考试做准备”是固定用法，所以第一个空用for；当afternoon被其他词修饰时，应该用on。所以本题选D。