Who's the lady______blue?A.in B.on C.at D.with

Who's the lady______blue?A.in B.on C.at D.with
Who's the lady______blue?
A.in B.on C.at D.with

Who's the lady______blue?A.in B.on C.at D.with
A,in blue表示穿着蓝色衣服.
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A
这里表示穿着，戴着，相当于wearing something。

in 表示穿着