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]: Spiders have eight legs and usually have ____ eyes.
[EX A]: eight

[EX Q]: Threshold is a value to avoid ____ divide.
[EX A]: zero

[EX Q]: Fats provide ____ calories per gram.
[EX A]:
nine