An explosion at a coal mine killed at least 62 workers and left another 13 missing---

问题补充：

--- An explosion at a coal mine killed at least 62 workers and left another 13 missing．

--- Yes, news came as shock to us all．

A. the; the

B. /; /

C. /; a

D. the; a

答案：

A. the; the

B. /; /

C. /; a

(答案→)D. the; a

解析：考察冠词用法，根据题意news指的是煤矿发生爆炸的消息，为特指。下文一个对我们的打击，是泛指，用不定冠词。故选D。