---Who’s the lady in red?---I guess she is Lily’s mother by what she .A. worn; wearsB. pu

问题补充：

---Who’s the lady in red?

---I guess she is Lily’s mother by what she .

A. worn; wears

B. putting on; dresses

C. dressed; wears

D. is; dresses

答案：

A. worn; wears

B. putting on; dresses

(答案→)C. dressed; wears

D. is; dresses

解析：wear通常指穿着衣服的状态，put on 通常指穿衣的动作，而 dress 既可指动作也可以指状态，后面接人做宾语。in后面可以接颜色，表示穿某种颜色的衣服，也是表示穿衣的状态。句意：这个穿红色衣服的女士是谁？——通过她的穿着，我猜她是丽丽的母亲。结合语境可知选Ｃ。