问题补充:
The number of people invited fifty, but a number of them absent for different reason.
A. were; was
B. was; was
C. were; were
D. was; were
答案:
A. were; was
B. was; was
C. were; were
(答案→)D. was; were
解析:考查谓语单复数,The number of…表示…的数量,所以第一个空是单数,a number of…表示许多,所以选D