【题目】The island country is _______ its clean waters and clear skies, which are free _____ pollution of any kind.
A.well-known to; of
B.famous for; for
C.well-known for; of
D.famous as; from

【答案】C
【解析】be well-known for和be famous for都有“因······而出名”的意思；be free of意为“没有·······”。故选C。句意：这个岛国因其没有受到任何污染的清澈的河流和干净的天空而出名。故选C。