下列关于染色体的叙述错误的是

A．正常人体细胞中有常染色体和性染色体

B．控制性状的基因只在常染色体上

C．人的性别由受精卵中性染色体组成决定

D．正常男性的性染色体组成为XY

—Do you often play _________ soccer with your friends?

—No, I don’t like sports. I often play ________ piano in my free time.

A．a, the

B．the, /

C．/, the

D．the, a