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]: Most species have four toes, ____ of which are forward-pointing.
[EX A]: three

[EX Q]: Calves are born after a gestation of ____ months.
[EX A]: nine

[EX Q]: Harvesting occurs every three to ____ years in the winter after leaves fall from the trees.
[EX A]:
four