【题目】It’s surprising that your brother ______ Russian so quickly--- he hasn’t lived there for long.
A. picked up B. looked up
C. picked out D. made up
在线课程【答案】A
【解析】pick up捡起，拿起，用车接某人，学会，逐渐好转； look up查找，向上看，好转，拜访； pick out挑选，了解，衬托；made up编造，捏造，化妆。句意：你哥哥这么快学会俄语真是很令人惊讶—他在那住的时间不长。
根据句意可知，选A.