高中英语冠词的用法辨析单选题

21. The winning of hosting _______ 2010 World Expo is _______ victory not only for Shanghai residents, but for ___________ people of the whole Chinese nation.

A．the; a; the

B．a; the; a

C．a; a; the

D．the; the; a

---Have you seen____pen? I left it here this morning.
---Is it ____black one? I think I saw it somewhere.

A．a; the

B．the; the

C．the; a

D．a; a

A．/ ; the

B．a ; the

C．the ; a

D．the ; the