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

Q: Cockroaches require food every _ to ten days but mut take in water every ten days.

A: seven
****
Q: All insects have _ body sections, the head , thorax , and abdomen.

A: three
****
Q: Parliamentary elections are held at least every _ years.

A:
four
****