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: Phoenix is a city where about one in ____ residents are from an emerging ethnic group.

SOLUTION: four

PROBLEM: Mature plants can be up to ____ feet tall.

SOLUTION: six

PROBLEM: Choppers have two or ____ blades.

SOLUTION:
three