Lessons 1-21. _am a student , and _ sister is a nurse. A I/I B Me/ my C My/ I D I/ my2 Excuse me! Is this _coat? A yous B you C yours D your3 Carol and I _students, and _parents are doctors. A are/ our B are/ we C is/ her D am/ my4 Is this handbag _?A she B shes C hers D her5 Is this your pencil?A No, it isnt. B Yes, it is my C Yes, this is D Yes, it is.6 Is this your