of studentsi11 the school is over 2000.of them are from the city.A. The number; A numberB.

问题补充：

of studentsi11 the school is over 2000.of them are from the city.

A. The number; A number

B. The number; The number

C. A number; A number

D. A number; The number

答案：

(答案→)A. The number; A number

B. The number; The number

C. A number; A number

D. A number; The number

解析：The number数字 是单数 A number of them他们中的一部分是复数。