这句英文表达有错吗a police's and teacher's child

这句英文表达有错吗a police's and teacher's child she is a lovely teacher.The names are my friend's 这两句话有错吗? It's ten meters long's bridge.请问这句英文有错吗? 如果错了应该怎么改呢? did a boy friend of my sister's go to the party?这句有错吗 o-r-a-n-g-e-s ,orange 这句有错吗 英语翻译a child's mind and body,researchers say. this s a blue ruler这句话有错吗? My favourite day is child's Day.这句错误在child's对吗? what clolour's Helen's dog?Her dog's brown and white,这俩句话有错吗 They are Peter's and Eric's这句话有错吗,正确的应该是They are Peter and E 是Jane and Lucy's father is a teacher,还是Jane's and Lucy's? 改错1.[Thia's] a book and [that's a ] dictionary.括号地方为有错的.