1.This is my pen.(变复数形式) 2.Those are English books.(变单数形式)
These are my pens.That's an English book.
3.These pencils are red.(变一般疑问句)
Are these pencils red?
1.This is my pen.(变复数形式) 2.Those are English books.(变单数形式)
These are my pens.That's an English book.
3.These pencils are red.(变一般疑问句)
Are these pencils red?