In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[Q]: Most people stay three or four years, sometimes _ or six years.
[A]: five

[Q]: Most cats have only _ to five toes per paw, depending on whether it is the front or back paw.
[A]: four

[Q]: Parallel lines are lines with _ points in common.
[A]:
no