单选题
[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
答案解析：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。