题干

The parents were shocked by ______ news that their son needed ______ operation on his knee.

A:A; /

B:the; /

C:the; an

D:a; an

上一题 下一题 0.0难度 选择题 更新时间:2017-10-17 01:35:18

答案(点此获取答案解析)

C