Put away your book.

收好你的书。

Please put away your math book.

请收走你的数学书。

Take notes either in the margins of your source (if you are using a photocopy or your own book) or on a separate sheet as you read. Put away that highlighter!

可以在材料的空白处做笔记(如果你是使用复制材料或者自己的书的时候)，或者单独做摘记。

Put your book away.

把(你的)书收起来。