问题
选择题
Jumping out of ____airplane at ten thousand feet is quite _____exciting experience.
A．/, the
B．/, an
C．an. an
D．the, the
答案
答案：C
airplane 为可数名词，an airplane 表示泛指，而此处的experience表示“经历”，为可数名词，an exciting experience意为“一次刺激的经历”