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 butterflies live only two to ____ weeks.
[A]: four


[Q]: Wind is renewable, and produces ____ emissions or by-products.
[A]: no


[Q]: Autism is a developmental disability that typically appears in the first ____ years of life.
[A]:
three