It is a pity that Christmas has become so（）.

It is a pity that Christmas has become so（）.
A、monetized
B、economized
C、commercialized
D、materialized
【正确答案】：C
【题目解析】：本题考查形容词辨析。四个选项均为过去分词做形容词。monetized：货币化的。economized：节约的。commercialized：商业化的。materialized：物质化的。句意：很遗憾，圣诞节已经变得如此商业化了。