【题目】A smile ______ the mother’s face when the son walked onto the platform to receive the prize.
A. lit up B. brought up
C. put up D. took up
在线课程【答案】A
【解析】
试题分析：考查动词短语。选项A意为照亮、露出喜色；选项B意为抚养、呕吐；选项C意为张贴、举起等；选项D意为从事、占据。根据下文的when the son walked onto the platform to receive the prize.可知选择A最为恰当，句意为：当儿子走向台前接受奖项时母亲的脸上露出了笑容。