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.

[Q]: Most insects have two antennae, six legs, and ____ wings.
[A]: four


[Q]: Harpists spend ninety percent of their lives tuning their harps and ____ percent playing out of tune.
[A]: ten


[Q]: Most people stay three or four years, sometimes five or ____ years.
[A]:
six