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]: Coastal kelp beds, for example, appear to be three times larger than in the past four or ____ years.
[A]: five


[Q]: Elves are the first of the ____ families of fairy People.
[A]: eight


[Q]: Ozone is generated electrically and therefore adds ____ chemicals into the treated water.
[A]:
no