Are these their erasers?把这个句子变成单数句子，还变不变their

These are their balls. These are their -(book) These are our oranges. Those are()(their) these are their gloves (同义句） these--------are------- these are their friends. [改为一般疑问句】 these are their books .用whose提问 these are their parents(改为一般疑问句) 英语翻译可不可以是are these their desks? These are their watches改为同义句 Are those apple?No,[they these their] These are their footballs改为同义句 these are their parents 同义句 these.are.caes.their 怎样排成疑问句 These are their books的同义句 These are our chairs.Those are____(their) These are their parents .的同义句 英语组词成句:these,are,bikes,new,their,(.) 划their these are their small rabbits.划线提问