Lesson 15 These are pigs?this/that/these/those你会用吗?你会用吗?This is a desk.This is a chair.This is a door.That is an apple.That is a cat.Lets practice!These are bears.These are pandas.Those are elephants.Those are monkeys.Those are dogs.Those are tigers.Can you say“this/that/these/those?”本课结束,谢谢听讲!本课结束,谢谢听讲!