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【2004.04】The actor was almost ___ most audience before he played that part.
A、known of
B、unknown to
C、known for
D、unknown for
【正确答案】：B
【题目解析】：此题考查短语辨析。句意为：这位演员在演这出戏之前几乎大多数观众都不知道他。be unknown to表示：不知道，陌生。