what is this?—this is a pen.哪里错了

What’s this?This is a pen.哪里错了? what is this?—this is a pen.哪里错了 what is this?this is a pen.哪错了? What is this?This is a watch哪里错了 What's this?——___.(①It's a pen.②This is pen.③This is an pen. 这些英文哪里错了并且改What‘ s this ls’ s yellow pen lt is a orange in E what is this?This is my photo.哪里错了? This pen is Tim 判断哪里错了 What is this 是This is a pen.还是.It is a pen?为什么? what is this It is a pen.还是This is a pen好 改错:1.This is Kate is an old pen .2.-What is this -This is a 问 What is this?答 It is yellow pen.这句话错在哪里?