The doctor came out and said the operation was well finished. The parents smiled and the nervousness disappeared from their faces.
A. in relief
B. in danger
C. in peace
D. in reality
网友回答
(答案→)A. in relief
B. in danger
C. in peace
D. in reality
解析：A. in relief如释重负般地 B. in danger处于危险中 C. in peace和平地D. in reality事实上；句意：医生出来了说手术非常的成功。父母亲如释重负般的微笑了一下，那种紧张感也烟消云散了。故选A