Examples
shì是shéi谁wàng忘le了bǎ把cāng kù仓库de的mén门suǒ锁shàng上？
是谁忘了把仓库的门锁上？
Who was it that forgot to lock the door of the warehouse?
暂时藏在仓库里好了。
Hide it inside the warehouse for now.
那您随我来一趟，咱们去仓库里找一找，说不定那里会有。
Then come with me for a moment. Let's check the warehouse. We might just find it there.