—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

动作技能学习心理过程的第一阶段是（ ）。

A．联结阶段

B．认知阶段

C．自动化阶段

D．熟练阶段