问题
选择题
No matter how bright a talker you are, there are times when it's better _____ silent. [ ]
A. remain
B. be remaining
C. having remained
D. to remain
答案
答案：D
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No matter how bright a talker you are, there are times when it's better _____ silent. [ ]
A. remain
B. be remaining
C. having remained
D. to remain
答案：D
