What does the boy with a football have
加油!不明白再问!billy has an american stamp in that box 对划线部分提问anHow many American stamps does Billy have in that box ?nine workers in that factory have a dog as a pet对划线部分提问nineHow many workers in that factory have a dog as a pet?方法：问数字都是用HOW MANY 多少peter and his twin brother have a new camera对划线部分提问peter and his twin brotherWho has a new camera? ( 问主语用WHO） 提示一下：你的追问已够三次， 先采纳再问好吗？要不你会被系统自动扣财富的。