情景交际：从方框中选择合适的选项补全对话。

A: Hello, Mary.
B:  　　　 .
A: Is my computer game on the table?
B: No, it isn’t. It’s in the bookcase.
A: Oh, OK.  Are they in the bookcase, too?
B:  . They’re on the chair.
A: Oh, so, where’s my pencil?
B: It’s under the radio.
A: And where’s my baseball?
B: It’s under the bed.
A: Where are my keys?
B:      .
A: Thank you, Mary.
B:     .