Those are his rulers.

那些是他的尺子。

同一单元的其他句子

• Is this your pencil?这是你的铅笔吗？
• That is my eraser.那是我的橡皮擦。
• These are her books.这些是她的书。
• Whose notebook is this?这是谁的笔记本？
• This is not my pen.这不是我的钢笔。