1.Are those eggs?
2.No,it isn't.
3.That is an eraser.
4.This is an English book.That's a pencil.变复数Those are pencils.Where are they from?变单数What's your name?变复数They're pens.变单数Is she from England？变复数These are buses.变单数1.Where is he\she\it from?2.What are your names?3.It is a pen.4.Are they from England?5.This is a bus.