It was terrible earthquake and number of people who were killed reached more than 20 000.A

问题补充：

It was terrible earthquake and number of people who were killed reached more than 20,000.

A. a; the

B. the; a

C. the; the

D. a; a

答案：

(答案→)A. a; the

B. the; a

C. the; the

D. a; a

解析：第一空泛指“一次严重的地震”；第二空特指“遇难人的数量”。句意：那是一次很严重的地震，在地震中遇难的人数2万多人。