this is pen 对吗This is book.这句话的句式对吗?

This is a oeange pen对吗? is this a pen?No it i(). this is pen 对吗This is book.这句话的句式对吗? this is our pen---------------- This pen is beautiful? This pen is yours Is this your pen?--( ).---Is this your pen?A.pardon B your pardon c I beg this is ------- -------- （pen).There are -------- (pen).填空 Is this your pen Is this his pen?选择疑问句 This is a pen.(this)are pencily 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 my pen,but that one is his怎样翻译,语法对吗 This is scissors对吗?