Where's your pencil case?怎么回答?

pencil case 是铅笔盒的意思阿
所以嘛．你觉得是在哪里捏？
书包啦．．书桌上啦都可以的

It‘s in my bag．
It‘s on the desk．

It's in my schoolbag.

根绝情况回答，
in my schoolbag,
at home
in my room.....等等
甚至可以说
i don't know，呵呵