The girl in the yellow sweater is Liu Jin .(同义句） The girl who__a yellow sweater__ is Liu Jin.

has,on
have on 表示：穿着,戴着,比如：
She had a purple dress on with a silver-white necklace.
她穿着一条紫色的连衣裙配着一条银白色的项链.
祝你学习进步,更上一层楼!(*^__^*)
有不会的可以再问我:）