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: Some adjectives have ____ forms, others have four.

SOLUTION: two

PROBLEM: Violets usually have ____ sepals at the base and have five petals.

SOLUTION: five

PROBLEM: Infants weigh on average one or ____ pounds at birth.

SOLUTION:
two