问题
选择题
I once watched _______ one-act play, which was played by _______ 11-year-old boy.
A．a, a
B．an, an
C．a, an
D．an, a
答案
答案：C
本题考查冠词。句中a one-act play泛指一场独幕剧；a 11-year-old boy泛指一个11岁的男孩。句意：我曾经看过一场独幕剧，是有一个11岁的男孩表演的。