完成对话Son:____________Mum. Where's my pencil sharpener ?M

完成对话
Son:____________Mum. Where's my pencil sharpener ?
Mom: Your pencil case or your pencil sharpener ?
Son: ____________ I want to sharpen my pencil .
Mom: Is it in your pencil case?
Son: ___________________
Mom: Is it on my bookcase?
Son: I don't know. Oh, I put it in the drawer .
Mom:______________ It is under a dictionary in the drawer .
Son: Yes,it is . _______________
该怎么填呢？