Millie often a very special costume at the party.A. puts on.B. dresses upC. wearsD. dress

问题补充：

Millie often a very special costume at the party.

A. puts on.

B. dresses up

C. wears

D. dresses

答案：

A. puts on.

B. dresses up

(答案→)C. wears

D. dresses

解析：A.穿上，指穿的动作； B.布置，打扮； C. 表示穿的状；D.给……穿衣。句意：在聚会上米利经常穿着一种特殊的装束。表示穿的状态，故选C。