As we all know, it is ____responsibility as well as ___honor for a country to be chosen to host the Olympic Games.

A．a, a

B．the, the

C．a, an

D．an, an

一张纸在某灯光下看是红色的，则 [ ]

A．纸一定是红色的

B．纸一定是白色的

C．灯泡一定是红色的

D．无法判断