Tests: Multiple answer 

I manage http:/campus.fuss.bz.it  used by about 3000 users in Bolzano (North Italy).
Some teachers asked me to send this suggestion:
**Multiple answer dropdown with exact selection:** 
when choosing the list, the word 'nothing' appears. Is not better to use the word 'select' as it appears when creating the question be more useful.
Thank you for all the work you do.
Andrea