― Was ______ problem solved?

― We were trying to think of ______ way out, but it was impossible to find one.

     A. a; the          B. the; a                  C. the; 不填      D. a; a

一Was　　 problem solved?

一We were trying to think of　　 way out，but it was impossible to find one.

A a：the　　　 B the；a　　　 C．the；不填　 D。the; the