问题
选择题
You should________your post, or you will be punished by your manager. [ ]
A. stick to
B. insist on
C. persist in
D. keep on
答案
答案：A
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You should________your post, or you will be punished by your manager. [ ]
A. stick to
B. insist on
C. persist in
D. keep on
答案：A