(2013·石家庄市高三二模)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
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(答案→)A. lit up
B. brought up
C. put up
D. took up
解析：选A 考查动词短语辨析。句意：当儿子走上台领奖时，妈妈脸上露出了喜色。light up“喜形于色，喜气洋洋”；bring up“提出；呕吐”；put up“提高；张贴”；take up“占用；开始从事”。故A项正确。