根据对话内容，用方框中所给单词的适当形式填空，每词限用一次。

Rick: Hello, Rick speaking.

Steve: Hi, Rick. It's Steve. How's it going?

Rick: Not bad, . The weather's great. What are you doing?

Steve: I'm playing basketball some friends at the park

Rick:like you're having a good time.

Steve: Yeah. Is your brother at home?

Rick: Oh, he's not here. He'sat his friend's home. Can I take a message for him?

Steve: Yes. Could youtell him to call me back?

Rick: Sure. No problem