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: Liters are ____ places to the right of hectoliters.

SOLUTION: two

PROBLEM: Earth is the third planet from the Sun in our solar system, which includes ____ other planets.

SOLUTION: seven

PROBLEM: Black widows mature in two to ____ months.

SOLUTION:
four