This is ( ) pencil-case.( ) is in my bag.A.his;My B.my;Your C.your;Mine D mine;Her 为什么?

this is your pencil Is this your pencil?是什么意思? Is this pencil your?改错 This is his pencil case. -Is this a pencil?-_________.A.Yes,thi-Is this a pencil?-_________.A.Yes,this is.B.Yes,they are.C.No,it isn't. This is a pencil box.对a pencil box 提问 This is a pencil box.(对” a pencil box”提问 ) This is my pencil-sharpener.It is not( ).A.you B.your C.yours This is your pencil.(改为一般疑问句) this is a pencil 改为一般疑问句 This is my pencil改成一般疑问句 Is this your pencil case中文 this is his pencil case 复数句 This is my pencil.换成一般疑问句. Is this pencil box?(改为陈述句) this is a pencil改为复数句 --- () is this?--It's a pencil 改为复句this is my pencil box