whose pencil-box is this回答 a,my b,mine c,me d,l

whose pencil-box is this回答 a,my b,mine c,me d,l This is a pencil box.对a pencil box 提问 This is a pencil box.(对” a pencil box”提问 ) 英文题.急救.用所给词的适当形式填空.whose pencil-box is bigger,yours or ____(she)? Whose pencil is this?的意思 Whose pencil is nicer than yours? Is this pencil box?(改为陈述句) Is that your pencil-box?后一句是什么 my pencil box is in my My pencil box is in my r(.) what is rong with your pencil-box? 改为复句this is my pencil box is this her pencil box?改为陈述句 （ ）pencil-box is this?填什么 who is your pencil box from is this your pencil-box?的答语 who is your pencil box from 中文 Whose is this pencil box?I don't____.My sister____it is Gina's.A、know;thinks.B、 think;knowsC、think；know.D、know；think