—Will you play football with Class 3?—.A. Yes we’ll.B. No we won’t .C. No we aren’t.D.

问题补充：

—Will you play football with Class 3?—.

A. Yes, we’ll.

B. No, we won’t .

C. No, we aren’t.

D. Yes, we can.

答案：

A. Yes, we’ll.

(答案→)B. No, we won’t .

C. No, we aren’t.

D. Yes, we can.

解析：助动词做肯定回答时一般不用缩写形式，cd选项应用助动词错误，只有正B答案正确。