(·重庆 32)The parents were shocked by news that their son needed operation on his knee

问题补充：

(·重庆，32)The parents were shocked by news that their son needed operation on his knee.

A. a；/

B. the; /

C. the; an

D. a; an

答案：

A. a；/

B. the; /

(答案→)C. the; an

D. a; an

解析：考查冠词。第一空news后带有that引导的同位语从句，故应该特指；第二空译为“他们的儿子需要做一个手术”，使用不定冠词。