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: Women are ____ times more likely to experience SAD than men.

SOLUTION: three

PROBLEM: Human malaria is caused by ____ species of Plasmodium . .

SOLUTION: four

PROBLEM: Heart disease is ____ times more common amongst smokers.

SOLUTION:
three