an english book复数形式
an english book复数形式
It's an english book.复数形式
That's an English book.(改为复数形式)
That is an English book的复数形式
That is an English book.给为复数形式
改为复数形式 Is that an English book?What"s this in English?It is
It's an english book.复数形式为什么是They are English books
It is an English book.(复数)
That is an English book变成复数
Is that her English book?复数形式
Is he an English boy.复数形式
Is an english book in the desk,改为复数句子