who is your pencil box from

-------put it in your pencil case?A.who B.who-------put it in your pencil case?A.who B.who is C.where D.whose who is your pencil box from who is your pencil box from 中文 this is your pencil ____ your pencil in the pencil case?a.Is b.Are c.Do d.Does where is your pencil?where is your pencil? what ( )is your pencil case? Is that your pencil是什么意思 Is this your pencil?是什么意思? That is your pencil,__ Is this pencil your?改错 your pencil is longer than ( My pencil is red .() is black .A:you B:your C:yours D:your's your pencil is long 对your 提问 （who)pencil is on the desk? My pencil is b____.Can I use your pencil-s______? 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)