Do you know the boy in a black jacket?为什么这里用in

Do you know the boy in a black jacket?为什么这里用in Do you know the boy( )black?Maybe he is new.A.in B.put on C. know ,that,in ,do ,black,jacket ,you ,man ,a ,连词成句 Do you know the boy.black.A.at.B.for.c.in.D.on.（快——） Do you know the boy in b____ Do you know the boy with a book in his hand.这里面的the可不可以换成tha The boy in the black jacket,whose back you can only see. Do you know the boy -----(ride)a black bike? the boy in a jacket looks very cool为什么不用with而用in 连词成句 do,know,the,in,you,man,black Do you know the man ()a large black T-shirt.A.for B.in C.at do you know the girl _____ long black hair?a.has b.with c.in