问题
选择题
If you don't want to fall behind others, you must _____ current events. [ ]
A. keep track of
B. keep track
C. keep touch with
D. keep in touch
答案
答案：A
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If you don't want to fall behind others, you must _____ current events. [ ]
A. keep track of
B. keep track
C. keep touch with
D. keep in touch
答案：A