--Do you play _______ piano in your free time?

---No, I like sports. I often play______ soccer with my friends.

A．/; the

B．the ;/

C．the ; the

D．a; a

我国面点制作历史悠久，利用发酵技术制作馒头源于（）。

A.周朝

B.汉朝

C.唐朝

D.宋朝