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

Q: Many Asian countries deny entry to travelers whose passports are valid for less than _ months.

A: six
****
Q: Skunks tear out divots of turf that are _ to six inches in diameter.

A: three
****
Q: Trees begin to form fruiting buds at around _ years of age.

A:
three
****