问题补充：
The children local accent when staying with the natives.
A. put up
B. made up
C. took up
D. picked up
答案：
A. put up
B. made up
C. took up
(答案→)D. picked up
解析：考查词组：A. put up举起，竖起B. made up组成，编造C. took up从事，拿起，D. picked up捡起，偶然，习得，句意：孩子们和当地人在一起的时候偶然习得了当地的口音。选D。
