问题
选择题
By making friends with native speakers, one can ______ a lot of their languages.[ ]
A．set up
B．pick up
C．bring up
D．take up
答案
答案：B
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By making friends with native speakers, one can ______ a lot of their languages.[ ]
A．set up
B．pick up
C．bring up
D．take up
答案：B