1．—Are you still busy?
—Yes, I ______ my work, and it won’t take long.
A．just finish B．am just finishing
C．have just finished D．am just going to finish
答案：B
解析：后一句话说，这将不会用很长时间，说明马上要完了，所以选B，用进行时表示将来。
2．Jumping out of ______ airplane at ten thousand feet is quite _______ exciting experience.
A．不填；the B．不填；an
C．an; an D．the; the
答案：C
解析：“从飞机上跳下来”，由于“飞机”是可数名词，其前既可用the，也可用an；第二空后的experience作“经历”讲，是可数名词，故应用an。
