TASK DEFINITION: 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.
PROBLEM: Pigs grow very quickly and are normally ready for sale at ____ to six months of age.

SOLUTION: four

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

SOLUTION: five

PROBLEM: Calves begin to take a few fish at about ____ to four months.

SOLUTION:
three