people who buy IBM PC686 is larger than ever before.A. A lot of 　B. A number ofC. A great

问题补充：

people who buy IBM PC686 is larger than ever before.

A. A lot of

B. A number of

C. A great many

D. The number of

答案：

A. A lot of

B. A number of

C. A great many

(答案→)D. The number of

解析：表达人数的多少用the number of。