are these desks?单复数形式

are these desks?单复数形式 将下列句子进行单复数互换 These are pens Is this an orange What's that in EnglishThose are apples Are these desks These are desks 对desks提问. 英语翻译可不可以是are these their desks? these new desks are owrs改为疑问句 These are my keys.是不是单复数转换? These are ours改为单复数形式急 单数句变复数句,复数句变单数句1He is his friend.2Those are boxes.3 These are desks. 把These are some desks.改成一般疑问句 These are dirty desks. Let's clean they.改错 These kinds of chairs and desks are made_____bamboo_____Guangxi These are dirty desks.Let's clean they(改错） These desks are made_____ wood _____ my grandmother these are( ) desks （they)在括号里填入适当形式 改错：These two desks are Lucy andLily`s. Are these your friends.改为单复数错了 是否定回答 These are desks 什么 desks are new A the B an C that D this 选什么 What are these?These are decks.这句话有错吗?如果有,怎样改?我打错了,原题是What are these?These are desks.