Inasportteameachplayerhasaclearrole，andtherearefewocca...

问题详情：

 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

知识点：定语从句

题型：选择题