TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Immune response improves in about _ weeks.

SOLUTION: four

PROBLEM: Osteoporosis is _ to four times more common in woman than men.

SOLUTION: three

PROBLEM: Plants are usually less than three feet tall, but can be up to _ feet tall near water.

SOLUTION:
ten