问题
选择题
The number of people invited _____ fifty, but a number of them ____ absent for different reasons.
A．were; was
B．was; was
C．was; were
D．were; were
答案
答案：C
the number of修饰可数名词复数形式，谓语动词用单数形式；a number of修饰可数名词复数形式，谓语动词用复数形式，故本题C项正确。
