我表弟的钢笔不在铅笔盒里.和.他堂兄的双肩背包在哪里.的英文
问题描述：
我表弟的钢笔不在铅笔盒里.和.他堂兄的双肩背包在哪里.的英文
答
My cousin's pen is not in the pencil box.
Where is his cousin's backpack?