—Would you like to climb mountains with me this Sunday?—I’d love to. But I play table tenn

问题补充：

—Would you like to climb mountains with me this Sunday?

—I’d love to. But I play table tennis between Class Three and our class.

A. am going

B. am going to

C. am

D. going to

答案：

A. am going

(答案→)B. am going to

C. am

D. going to

解析：

试题分析:由题干中的this Sunday可知，表示将来的动作。故用将来时。Be going to do sth表示计划或打算做某事，故选B。