Is Mary Sally and joan's mother?

Is Mary Sally and joan's mother? 几道初中英语1.Mary and Joan's boooks与Mary's and Joan's boooks区别是什么 The woman over there is Julia and Mary’s mother Sally is sitting ________her father and mother. It _____ Joan and Mary that left school yesterday.为什么填is? 关于英文名字及称呼My maths teacher's name is Mary Joan Shute.So we ca The woman dressed in blue is Mary and Alice’s mother 怎么改否定句 The woman (in blue) is Joan's mother.对括号部分提问. 阅读理解.This is Joan and Kate’s bedroom.The blue bed is Kate’s Where is[ ]birthday party? A.Jin's and Sally B.Jin and Sally Tom's mother is _____(thin) than Mary's miss smith is a friend of mary‘s mother’s