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
这题考查的是主谓一致，第一空填was因为主语是the number of“…的数量”谓语用单数，第二空填were，因为主语是a number of“许多”谓语用复数。选C。