TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Most people go back to work within _ to three months after having a heart attack.

SOLUTION: one

PROBLEM: Normal adults appear to require _ to eight hours of sleep per day on average.

SOLUTION: six

PROBLEM: Evolutionists note _ major periods of mass extinction in the fossil record.

SOLUTION:
five