This pen is Tim 判断哪里错了

This pen is Tim 判断哪里错了 E____me.Tim.Is this your pen? is,Tim is,new,pal,pen,this连词成句 Whose pen is this 和Whose is this pen的区别在哪里 this is Tim?中文直译 this is our pen---------------- This pen is beautiful? This pen is yours what is this?—this is a pen.哪里错了 this is ------- -------- （pen).There are -------- (pen).填空 Is this your pen Is this his pen?选择疑问句 this is his pen.my is in the pencil box 哪里错了 怎么改 this is his pen.my is in the pencil box 哪里错了 怎么改 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?