【题目】" What __________ frightening experience ！"the woman who survived the earthquake said with __________ frightened look on her face.
A. a; a B. 不填；a
C. 不填；不填 D. a; 不填
在线课程【答案】A
【解析】句意：那个地震中幸存的妇女带着满脸惊慌说：“多么可怕的经历啊!” experience经历，为可数名词；look表情，为可数名词；且都表示泛指，故前面应加不定冠词a。