i sit ( ) lucy and lily 填什么

Lucy and lily sit back to back. Lucy and Lily 姓什么? “Where does Jim sit?" "he sits _____ Lucy and Lily." 请问括号内填什么,These are （ ）bags.A.Lily and Lucy's B.Lily's and Lu 填 介词 Please look __ the map.Lucy and Lily are __ England.I c their 什么 are lucy and lily Lily and Lucy 什么 from USA. They are f Lily and Lucy.f开头填什么单词 _____father is a music teacher.横线里填什么?选项：A.Lucy and Lily's B I sit b-----(填什么）Millie and Jill Lucy and Lily are ( ). Lucy and Lily are twins, they are a_怎样填?