TASK DEFINITION: Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.
PROBLEM: Fats come in ____ different forms saturated and unsaturated.

SOLUTION: two

PROBLEM: Uninsured men are up to ____ times more likely to die in the hospital.

SOLUTION: three

PROBLEM: Sponges have ____ main tissue layers.

SOLUTION:
three