从方框中选择最佳选项完成对话，有两项多余

a. Are there any computers in your classroom?

b. It's behind Tony's.

c. There isn't a television in my classroom.

d. How many students are there in your class?

e. It's on the teacher's desk.

f. Yes, there are.

g. No, there aren't.

A: 

B: There are forty- eight students, twenty- four boys and twenty- four girls.

A:

B: Yes, there is only one.

A: Are there any pictures on the walls of your classroom?

B:There are four pictures.

A: Where is your desk?

B: