【题目】She ______ Japanese when she was in Japan. Now she can speak it freely.
A.picked out
B.made out
C.made up
D.picked up

【答案】D
【解析】A. picked out选出，辨认；B. made out理解，辨认清楚；C. made up组成，编造，弥补；D. picked up拾起，获得，学会；句意：在日本时她把日语又捡起来了。现在她能自如地说日语了。根据句意，故选D。