Question

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

Answer 1

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。