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]: Hearing is acute by three or ____ weeks and kittens learn to determine what sounds mean.
[EX A]: four

[EX Q]: Water is moved underneath the body by most or all of the ____ arms.
[EX A]: eight

[EX Q]: Insects sport ____ appendages, and dominate the species count on our planet.
[EX A]:
six