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: Mosquitoes live ____ to eight weeks.

SOLUTION: four

PROBLEM: Cognitive changes are probably equivalent to about a three to ____ month delay in progression.

SOLUTION: six

PROBLEM: Doctors say the average adult needs ____ to nine hours of sleep a night.

SOLUTION:
seven