阅读下面材料，从每题所给的A、B、C、D四个选项中选中最佳选项。

Dale has a new baseball hat. It is from his sister Grace. The hat is blue and it is beautiful. Dale loves it. He wears(戴) it every day. When he doesn't wear it, he always puts it on his desk. This morning Dale wants to go and play baseball with his friends. He wants to wear the hat, but the hat is not on the desk. Where is it? Dalelooks forit under the sofa, under the chair, in the schoolbag, just everywhere. But he can't find it.

"Do you see my hat?" Dale asks his family. No one sees it.

Dale is sad(伤心). He thinks his hat is lost. At that time, his dog Puppy comes. And the hat is on his head!Heloves the hat, too.

Dale is very glad. He gets the hat and leaves(离开) home.