—They is an          look on his face. What for?

—Because he heard the          news about his students just now.[ ]

A. excited; exciting

B. exciting; excited

C. excited; excited

D. exciting; exciting

在这种公交车站怎样预防公交车突然起步？（）

A．在公交车后停车

B．迅速超越公交车

C．减速，缓慢超越

D．连续鸣喇叭提醒