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the number of people invited ()60,but anumber of them()absent for different reasons A were,was B was,was C was,were D were,were 选哪个

题目详情
the number of people invited ()60,but anumber of them()absent for different reasons A were,was B was,was C was,were D were,were 选哪个
▼优质解答
答案和解析
C
the number of表示……的数量,谓语用单数
a number of表示许多,大量,谓语用复数