I have a pencil sharpener 怎样变否定句为什么这样变详细说明

I have a pencil and a pencil?改一般疑问句 I have a long pencil.He has a short pencil.My pencil is_____than_____.同义句转换 shar pen your pencil中文是什么意思 i i have a pencil英语怎么读 I don't have a pencil.my brother has a pencil.(改为一句话) 请大家来填下空 I have a pencil case ( )big. May i have a pencil case?OK.( )( )( ) is ( ) you. I have a ruler.用pencil变成选择疑问句 I have a rubber in my pencil-box.(同义句) look,a,have,at,your,pencil,I,can I have a red long pencil 这句话那儿错? I don't have a pencil. （写同义句） i have got a ret pencil否定句 I have a leather pencil case同义句（）pencil case（）（）（）（） ()have a pencil (),too.In()pencil box I have a pencil but I don't have a k____ I have a pencil case.变复数.I have ___pencil cases.用some还是many I didn't have a pen,so i use a pencil i__填什么?