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]: Seraphs have ____ wings, and their voices can shake doorposts and thresholds.
[EX A]: six

[EX Q]: Water is the only substance found on earth naturally in ____ forms.
[EX A]:
three