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: Spiders have only ____ body divisions and eight legs.

SOLUTION: two

PROBLEM: Tetrads come in ____ shapes.

SOLUTION: seven

PROBLEM: Plant life is critical to all ____ life cycles.

SOLUTION:
three