Marked wrong for writing to ring "the" instead of "a" bell! Probably because I am used to the phrase "ring the bell" as a result of being a teacher for over forty years.
Both 'a' and 'the' are correct.
If I wanted to specifically say "You will ring the bell", it'd be "Utaipiga kengele", is that right?
kengele (n class, plural kengele)