What does the boy with a football have
加油!不明白再問!billy has an american stamp in that box 對劃線部分提問anHow many American stamps does Billy have in that box ?nine workers in that factory have a dog as a pet對劃線部分提問nineHow many workers in that factory have a dog as a pet?方法：問數(shù)字都是用HOW MANY 多少peter and his twin brother have a new camera對劃線部分提問peter and his twin brotherWho has a new camera? ( 問主語用WHO） 提示一下：你的追問已夠三次， 先采納再問好嗎？要不你會被系統(tǒng)自動(dòng)扣財(cái)富的。