Inasportteameachplayerhasaclearrole，andtherearefewocca...

問題詳情：

 In a sport team each player has a clear role，and there are few occasions ___________ members are confused or uncertain of their roles.       

A. why               B. that               C. when                  D. in which

【回答】

C

知識點：定語從句

題型：選擇題