Where is your family？

回答：

It's in Beijing.

Where is your book？

回答：

It's in my school bag.

Where is Li Pin？

回答：

He is reading in the book store.

Where is your black dog？

回答：

It's running on the ground.

Where is the hospital？

回答：

I have few friends in this city.

这些句子和回答展示了"where is"在不同情境下的应用，涵盖了家庭、物品、人物和地点的询问。希望这些例子对你有所帮助。