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: Cells contain ____ families of small organic molecules.

SOLUTION: four

PROBLEM: Most modern computers have ____ bits to a byte.

SOLUTION: eight

PROBLEM: Women lose an average of ____ pounds a week, men an average of five.

SOLUTION:
three