Is this your pencil?-NO,it isn't.-sorry.-____ A..All right B.That's all right

this is your pencil Is this your pencil?是什么意思? Is this pencil your?改错 This is your pencil.(改为一般疑问句) Is this your pencil case中文 is this your pencil-box?的答语 Is this your pencil?中this是什么词? Is 【this】 your pencil-box.问为什么用this. Is this your pencil?Yes ,it is.变复数 This is my pencil ,and that is your.改病句 pencil,your,this,is,sharpener如何合成一个句子? Exuse me!Is this your pencil case?改为复数形式 this is your pencil sharpener.变复数________your___________ Is this your pencil?Yes,t( )you填什么单词 This is your pencil sharpener.改为一般疑问句 is this a pen ___ your pencil case This is your pencil .Here are you .改正 This is a new pen.( ) it in your pencil case