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: Sexual maturity is reached within ____ to four years.

SOLUTION: two

PROBLEM: Most ovarian cysts go away on their own in ____ to three months without causing any problems.

SOLUTION: one

PROBLEM: Newborn kittens develop sight during the first ____ or four weeks of life.

SOLUTION:
three