You can tell the students on the ____ by the books they carry. A: detect B: subway C: inadequate D: scribbling

Write it down on a piece of paper, rather than ___________it at the back of an envelope or a bill. A: to scribble B: scribbled C: scribbling D: have scribbled

I saw the girl across the aisle from me lean forward and peer over the shoulder of the boy in front of her who was scribbling something.