John's and Mary's school 应为John's and Mary's schools,谓语动词也该用复数形式.如果是John and Mary's school 是两人共在同一所学校.谓语动词用单数.
名词所有格 John's and Mary's school 这个作主语的话 后面谓
名词所有格 John's and Mary's school 这个作主语的话 后面谓语是单数还是复数
John's and Mary's school 应为John's and Mary's schools,谓语动词也该用复数形式.如果是John and Mary's school 是两人共在同一所学校.谓语动词用单数.