问题
选择题
_____ I say Clancy is a smart boy, he still needs to work hard to achieve his goal. [ ]
A. Then
B. When
C. While
D. As
答案
答案：C
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_____ I say Clancy is a smart boy, he still needs to work hard to achieve his goal. [ ]
A. Then
B. When
C. While
D. As
答案：C