从方框中选择句子补全下面的对话。

A. This is my new classroom. B. Where's the fan? C. Look at the picture. D. Is that a TV on the teacher's desk? E. Good morning, Bobby.

Sue:

Bobby: Good morning, Sue.

Sue: Look!

Bobby: It's so big.

Sue:

Bobby: It's beautiful.

Sue: No, it isn't. It's a computer.

Bobby:

Sue: It's on the wall.