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: Wombats measure up to ____ feet long and weigh from thirty to seventy-five pounds.

SOLUTION: four

PROBLEM: Girls have ____ ovaries.

SOLUTION: two

PROBLEM: Female cats come into heat cycles every ____ to four weeks during certain times of the year.

SOLUTION:
three