what a( )this pencil?

what a( )this pencil? What is this?----This is a pencil sharpener改错 对 It’s a pencil sharpener提问是what’s this？还是Is it a pencil sharpener？ this is a pencil 改为特殊疑问句是不是what is this? A:What's this?B:Oh.( )It'sA:What's this?B:Oh. ( )It's my pencil. Its my pencil case.Whats in it?Look,this is a pen. 一道初一英语习题.is__2__your pencil?A.it B.this C.than D.what该填那个? This is a pencil box.对a pencil box 提问 This is a pencil box.(对” a pencil box”提问 ) this is a pencil 改为一般疑问句 this is a pencil改为复数句 --- () is this?--It's a pencil --It's a ball pen,( --It's a pencil.A.what is this B.and what is this C.what's it--It's a ball pen,( --It's a pencil.A.what is this B.and what is this C.what's it What is on the desk?-------a pencil case.A.it is B.this is C.there is Look! ____ a pencil sharpener8. A. What’s B. This’ s C. That’s D. The name’s What's this?oh.( )It's my pencil. 连词成句.about,this,what,green,pencil? what is in your hand now?回答there is a pencil.请问为什么用there is不用this is