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: Plants have roots for ____ main reasons.

SOLUTION: two

PROBLEM: Milk contains ____ complex carbohydrates.

SOLUTION: zero

PROBLEM: Many orchids take ____ to seven years to mature to flowering.

SOLUTION:
five