TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Mice are fertile animals because female mice come into heat every _ to five days.

SOLUTION: four

PROBLEM: Bacteria acquire genes conferring resistance in any of _ ways.

SOLUTION: three

PROBLEM: Figure skating is like flying, but it's also like climbing hundreds of stairs in _ minutes.

SOLUTION:
four