问题
选择题
By making friends with the native speakers, one can ________ a lot of their language.
A．pick up
B．take up
C．set up
D．make up
答案
A
题目分析：考查介词短语：A. pick up捡起，偶然习得，恢复，接送，B. take up从事，拿起，占据，C. set up建立，D. make up 组成，编造，弥补，化妆，句意：通过和当地人交朋友，一个人可以习得很多他们的语言。选A。