单选题 When I entered the living room, mother didn"t say anything, but I noticed a ______ look had come over her face.
【正确答案】 A
【答案解析】[解析] 我走进起居室时，妈妈没说话，但我看到了她脸上吃惊的表情。surprised是过去分词作定语修饰名词look，含被动的意思。