Help the culinary instructor complete her review of the disastrous baking class. Choose the ONE word that best fits the situation!

Out of the twenty students in my class, nineteen accidentally turned their cookies into charcoal. Only one student baked them perfectly! _____ of the students burned their desserts today.

The correct answer is Most.

Because 19 out of 20 is the vast majority (but not 100%), we use most. We cannot use "all" because one student didn't burn their cookies!