问题
选择题
The most important thing about cotton in history is ______part that it played in ______ Industrial Revolution.
A．不填；不填
B．the; 不填
C．the; the
D．a; the
答案
答案：C
part是先行词被定语从句修饰，是特指；后一空是由普通名词构成的专有名词,特指18世纪后半叶英国工业革命，故两空都选定冠词。