Do you know the boy( )black?Maybe he is new.A.in B.put on C.

答案是A
Do you know the boy( )black? Maybe he is new.
A.in B.put on C.put D.wear
put on和wear和in+表示颜色的名词都有”穿”的含义．
put on 表示穿衣服的动作,不能表示状态．
wear(v.)可以表示状态,但在这里要用现在分词wearing.
in+表示颜色的名词可以表示”穿衣服”的状态．如：一个穿红衣服的小女孩a little girl in red