This is a pencil.I( ) price is one yuan.括号里应该添什么

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 This is a pencil.I( ) price is one yuan.括号里应该添什么 What is this?----This is a pencil sharpener改错 And this is a pencil,too.It's yellow.This is s ruler .It's blue and white.I like my pencil case.翻译这句话 this is your pencil is,too,that,pencil,my,and) (is,case,yellow,this,a,pencil(is,too,that,pencil,my,and) (is,case,yellow,this,a,pencil)连词成句 This is a pen and ____ is a pencil. This pencil is 18cm.That pencil is 20cmThis pencil is a ___ ____ than that one This is a pencil and a pen还是These are a pencil and a pen what a( )this pencil? This is a pen,and ____is a pencil over there This is my a pencil sharpener in English.对a pencil sharpener 提问 用I,you,his,hre,it,this,me填空 1._____is a girl,_____name is mary.2.this is a pen,and what's_____?______is a pencil. This is a pencil sharpener.(改为一般疑问句)