I say Clancy is a smart boy he still needs to work hard to achieve his goalA. ThenB. Wh

问题补充：

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：

A. Then

B. When

(答案→)C. While

D. As

解析：词义辨析。Then那么，然后；When当…..时候；While 当…..时候，尽管； As

正如，正像。句意：尽管我说 Clancy是一个聪明的男孩，他仍然需要努力学习来实现他的目标。所以选C。