Those are chair .(由复数变成单数)

Those are chair .(由复数变成单数) those are picture.（变成单数形式） 一 选词填空 are,for,on,is,at,are 二 将下列句子由单数变成复数 Is this a book 改成复数形式 Those are chairs 改成单数形式 What are these ls this your photo复数.those are ld cards单数.they are linda's b This is my friend . 复数句 Those are ancient buildings .单数句 Are this is my backpack复数,they are my aunts单数,those are my CDs划线 Are those apples 改为单数 those are cakes单数形式 What are those?改成单数 what are those?改为单数 Are those oranges?单数形式