In a sports team each player has a clear role,and there are few occasions _____ members are confused or uncertain of their rolesA.whichB.thatC.whenD.how
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C解析试题分析: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。考点:定语从句的考查点评:定语从句(Attributive Clauses)在句中做定语,修饰一个名词或代词,被修饰的名词,词组或代词即先行词。定语从句通常出现在先行词之后,由关系词(关系代词或关系副词)引出。解答这类题目,分析句子结构是关键。看关系词在定语从句中担当什么成分,以及实际意义来选择正确的关系词。