"Lucy and Lily's father is a teacger."中为什么“Lucu and Lily's father”是一个整体?

These are( )friends A.Lucy's and Lily's B.Lucy and Lily C.Lucy and Lily's D.Lucy's and Lily 2,Tom is____brother.A,Lucy and Lily's B,Lucy's and Lily C,Lucy's and Lily's D,Lucy and Lily.请解释 This room is ___ .A.Lucy and Lily B.Lucy's and Lily C.Lucy's and Lily's D.Lucy and Lily's 语法说明 This is ( ) father,Mr.Smith.A.Lucy and Lily B,Lucy's and Lily's C.Lucy and Lily's D.Lucy's and Lily my seat is between ______ in the classroomA lucy and lily B lucy's and lily C lucy and lily's D lucy's and lily 请问Lily and Lucy's和Lily's and Lucy's有什么区别吗 Lily's and Lucy's与Lily and Lucy's的区别 The desks are ________.A.Lily's and Lucy's.B.Lily and Lucy's 请问括号内填什么,These are （ ）bags.A.Lily and Lucy's B.Lily's and Lucy's C.Lily and LucyD.Lily's and Lucy The desk is Lucy and Lily's.{Lucy and Lily's画线} —— is this? Lily's and Lucy 和 Lily and Lucy's 有什么区别急 Mr.Smith and Mrs.Smith are________A:Lucy's and Lily's parent.B:Lucy ang Lily's parents.C:Lucy's and Lily's parents. This is Lily's and lucy's mother.纠错 this is lily`s and lucy`s room 改错 This bedroom is Lucy's and Lily's 改错 Lucy's and Lily's friends are good. Lucy's and Lily's firends are good.中文 That 's Lily and that's Lucy.They are twins.