Is your notebook the lost and found case?A. inB. atC. toD. on

问题补充：

Is your notebook the lost and found case?

A. in

B. at

C. to

D. on

答案：

(答案→)A. in

B. at

C. to

D. on

解析：本句的含义为你的笔记本在失物招领处吗？在失物招领处用介词in，故本题选A。