We had to spend three more hours waiting in cafe at the airport because flight was delaye

问题补充：

We had to spend three more hours waiting in cafe at the airport because flight was delayed.

A. a; the

B. 不填; the

C. the; 不填

D. a; a

答案：

(答案→)A. a; the

B. 不填; the

C. the; 不填

D. a; a

解析：考查冠词：第一空填a，泛指“机场的一家咖啡店”，第二空填the，特指“我们乘坐的航班”，句意：我们不得不在机场的咖啡店再等3个小时，因为航班被延误了。选A。