---Is mother a teacher? ---Yes, and Lucy and Lily are .A.Lucy and Lily’s, twin sistersB.Lucy and Lily’s, twin sisterC.Lucy’s and Lily’s, twin sistersD.Lucy’s and Lily’s, twin sister
The two pencil boxes are the .They are .A. twin’s; Lucy and Lily’sB. twin’s; Lucy’s and Lily’sC. twins’; Lucy’s and Lily’sD. twins’; Lucy’s and Lily