问题
选择题
The number of people invited to the party _____ sixty, but a number of them ______absent.
A．were; was
B．was; was
C．was; were
D．were; were
答案
：C
：考查主谓一致。The number of…做主语时，谓语动词用单数；a number of修饰可数名词复数形式，做主语，谓语动词用复数。句意：被邀请来参加会议的人的数量是60.但是很多人都缺席了。故C正确。