问题
选择题
By making friends with the native speakers, one can _________ a lot of their language.
A．take up
B．set up
C．pick up
D．put up
答案
答案：C
考查短语辨析。take up 从事，set up 建立，pick up 捡起，偶然学到，put up
搭起。句意：通过和本地人交朋友，一个人可能会偶然学到他们的语言。故选C。