1. (2022六上·长春期末) 根据对话内容及方框中所给的句子补全对话，选项中有一项是多余选项。

A. It's a pencil box. B. How are you? C. You are welcome. D. Thanks a lot. E. Are these your books? F. What color is his phone?

A: Good afternoon, Grace.

B: Hello, Steven.

A: I'm fine, thanks. And you?

B: I'm OK.

A: No, they aren't. They are Bob's. His name is on the books.

B: What's this?

A:

Some pens, pencils and rulers are in it.

B: Look. Here's a photo. Is the man your teacher?

A: Yeah, he is our math teacher, Mr. Li. He's really nice.

B: He looks friendly.

A: It's black and white.

B: Oh, I see. You're lucky to be his student.

A:

I think I'll be better with his help.