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: Measles usually begin with cold-like symptoms followed by a high fever and a rash ____ days later.

SOLUTION: three

PROBLEM: Some species live for as little as ____ months.

SOLUTION: six

PROBLEM: Viceroys produce ____ generations per year, and the food habits of each generation differs.

SOLUTION:
three