When Monica returns to the nurse to ask for another form you can clearly see that she is using a pencil, so there was no need for Monica to get another form. However, this is not necessarily a goof. Monica might not have had an eraser or she probably didn't want rather the writers didn't want] the trouble and waste of [screen] time of erasing the whole form. See more
[runs into hospital holding Marcel
You've got to help me my monkey swallowed a "K"!
Get that animal outta here!
No the animal hospital is on the other side of the city he's choking!
Excuse me? This hospital is for people!
Lady he IS people! He has a name! OK? He watches Jepordy! He... he... touches himself when no one's watching!
What's the Frequency, Kenneth?
Written by Michael Stipe
, Mike Mills
, Peter Buck
and Bill Berry
Performed by R.E.M. See more