earthquake on March 11th was terrible disaster making thousands of Japanese homeless.A.

问题补充：

earthquake on March 11th was terrible disaster, making thousands of Japanese homeless.

A. An; a

B. The; a

C. An; the

D. The; the

答案：

A. An; a

(答案→)B. The; a

C. An; the

D. The; the

解析：本题考察 冠词的用法。3月11日的大地震是特指，所以应用定冠词the。而后边的disaster是泛指，所以应用不定冠词a。