For many Beijingers dreams of living in green area are becoming reality .A. a; aB. the ;t

问题补充：

For many Beijingers ,dreams of living in green area are becoming reality .

A. a; a

B. the ;the

C. 不填；不填

D. 不填; a

答案：

(答案→)A. a; a

B. the ;the

C. 不填；不填

D. 不填; a

解析：抽象名词，有时也可以加a, 如 surprise ,success,reality。