阅读下面短文，用括号内所给动词的适当形式填空，必要时可加助动词或情态动词。(请将各小题答案写在短文后相应的横线上)

Do you still remember Old Henry? Last Sunday, he      (go) for a walk with Wang Wang, his cute dog. It was a nice day. Old Henry sat down and watched Wang Wang    (play) with a friendly black cat. Then it was time to go home. Old Henry looked for his dog. But Wang Wang      (be) not there! Now Old Henry is very sad. He   (miss) his dog and doesn’t want to do anything.