TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Allergic rhinitis is the most common allergic disease, with one in _ Canadian adults affected.

SOLUTION: five

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

SOLUTION: three

PROBLEM: Turkey also has _ inland drainage basins.

SOLUTION:
two