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.

Most lemmings are ____ to six inches in length and weigh less than four ounces.
three

Most people get one or ____ common colds every year.
two

Parvo can survive in the environment for as long as ____ months.

six