This pen is beautiful?

this is our pen---------------- This pen is beautiful? This pen is yours this is ------- -------- （pen).There are -------- (pen).填空 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 This is a pen.(this)are pencily This is pen.how much is the pen This not is your pen,your pen is white.改错 This is not my pen.M______ is is this( )Japanese pen?yes,it is This pen is 20 yuan.That pen is 200 yuan.= This pen is much less expensive than that pen. This a pen.that is a pen,什么