根据对话内容，从文后的选项中选出能填入空白处的最佳选项，其中有两个选项为多余选项。

A. It's under the sofa. B. Where is Mom's hat? C. No, it isn't. D. Yes, it is. E. And your baseball is under the table, too. F. They're on the chair. G. And where are Mom's keys?

A: I can't find my computer game. Is it on the table?

B:  It's in the bookcase.

A: Oh, yes. Where are my English books? Are they in the bookcase, too?

B: No, they aren't.

A: Where is my pencil box?

B:

A: And where is my schoolbag?

B: It's under the table.

A: I see.

B: The keys? They're on the table.