fill something in
to write information in blanks (British English)
Example:
A: Please fill in this information sheet before you go to the next window.
B: After filling this in, should I let you sign?
A: Yes, don't forget to let me sign or else you won't be entertained in the next window.
B: Thank you!
[pv]
14-05-08 12:48, 14-05-08 12:49, Marz