this 词性this pen 中this 的词性

this 词性this pen 中this 的词性 this is our pen---------------- This pen is beautiful? This pen is yours this是什么词性 this is ------- -------- （pen).There are -------- (pen).填空 This is a pen.(this)are pencily Is this your pen Is this his pen?选择疑问句 This is pen变复数 this is a my pen 改错 Is this he pen This is a nice pen. This is yours pen.为什么? This is an English pen 改写句子,用名词性物主代词填空1.This is your ruler.This ruler is________.2.Those are their bags.Those bags are______.3.This is our classroom.This classroom_________.4.This is my book.This book is________.5.That is his pen.That pen is____ This is pen.how much is the pen This not is your pen,your pen is white.改错 This a pen.that is a pen,什么