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

Q: Flytraps spin when _ creatures can be infected.

A: no
****
Q: Humans are bipeds who stand between _ to six feet in height when fully grown.

A: five
****
Q: Teenagers develop colds about as often as adults do-two to _ times a year.

A:
four
****