Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

[EX Q]: Rattlesnakes breed only every ____ to three years.
[EX A]: two

[EX Q]: Sexual maturity is reached at ____ years, and females calve every other year.
[EX A]: four

[EX Q]: Crabs usually walk sideways on their ____ pairs of legs.
[EX A]:
five