根据短文内容，用方框中所给单词的适当形式填空，每词限用一次。

Here is a _________. A man and a boy are in it. ______ are they? Let me tell you. The man is Mr. White, and the boy’s name is Bill. He’s the man’s son. Now ______are in Bill’s bedroom. We can see some _______ books in the desk. And on the bed is a shirt. It ’s Bill’s. His pants are_______ his shirt.