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935.In a sports team each player has a clear role,and there are few occasions __ members are confused or uncertain of their roles.
A.which
B.that
C.when
D.how
936.Can you give me a case _____ this phrase can be used?
A.when
B.that
C.where
D.which
n. 短语，习语，个人风格，乐句
vt. 措词
