these balls are theirs改为同义句

these balls are theirs改为同义句 these english books are theirs.改为同义句 改为同义句：these chinese books are theirs. these books are theirs.同义句 These books are theirs. 的同义句 these are red balls 同义句 There are red balls改为同义句 these white and black TVs are theirs改同义句 Whose are these balls?(同义句转换)_____ _____ are these? These are their footballs改为同义句 these shorts are yellow.改为同义句 These are their watches改为同义句