Which sentence is grammatically correct? Mary has got a dog. This is Mary's dog. Mary has got a dog. This is Mary dog. Which sentence is grammatically correct? Charles has got a bicycle. This is Charles' bicycle. Charles has got a bicycle. This is Charleses bicycle. Which sentence is grammatically correct? The women have got handbags. These are the womens' handbags. The women have got handbags. These are the women's handbags. Which sentence is grammatically correct? My friends have got a car. This is my friend's car. My friends have got a car. This is my friends' car. Which sentence is grammatically correct? My dad has got a watch. This is my dad's watch. My dad has got a watch. This is my dads' watch. Which sentence is grammatically correct? My grandma has got a cat. This is my grandma's cat. My grandma has got a cat. This is my grandmas cat. Which sentence is grammatically correct? My children love swimming. My children's hobby is swimming. My children love swimming. My childrens hobby is swimming. Which sentence is grammatically correct? The students have got books. These are the students's books. The students have got books. These are the students' books.