4.(Mrs.Cook arrives home after shopping for food.)
Walter:Mom,I can't find my eraser.
Mrs.Cook:Again?That's the fourth (71)timethis month!Have you checked your pencil box?
Walter:Yes,but it's not there.
Mrs.Cook:Did you look (72)aroundin your room?
Walter:Yes,I did.
Mrs.Cook:How about the living room?
Walter:It (73)couldn't/can'tbe there.I was doing my homework in my room and didn't even go into the living room.
Mrs.Cook:Well,then,borrow one from your brother for now.I'll (74)helpyou find it after I put all the food in the refrigerator.
Walter:OK.
Mrs.Cook:Walter!Look what I've (75)found.
Walter:My eraser!Oh,I remember!I got some juice from the refrigerator,and…and…
Mrs.Gook:And put the eraser in the refrigerator.
Walter:Well,I don't remember that part.
Mrs.Cook:Well,take it,and be more careful next time.