问题
选择题
In a sports team each player has a clear role，and there are few occasions ________members are confused or uncertain about their roles.
A．whose
B．that
C．when
D．which
答案
答案：C
本题考查定语从句。when引导的定语从句修饰occasions。occasion意为“时刻，……的时候”，关系副词在定语从句中作时间状语。