Whatmakesthedifferencewhenwearefacedwithchallengesis,I...

問題詳情：

 What makes the difference when we are faced with challenges is, I think, _____ we should believe in our courage. 

   A. what         B. which         C. when             D. that  

【回答】

 D。that引導表語從句，在從句中不作成分。I think在句中為*入語。

知識點：連詞

題型：選擇題