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
网友回答
A. were; was
B. was; was
(答案→)C. was; were
D. were; were
解析：：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。