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]: Banks hold ____ excess reserves and the public holds no currency.
[EX A]: no

[EX Q]: Nests Have at least one nest for every three to ____ hens.
[EX A]: four

[EX Q]: Females like to care for three to ____ babies at a time because one cub is a waste of time.
[EX A]:
four