TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Mountain sheep have _ sharp teeth at the front of the mouth.

SOLUTION: eight

PROBLEM: Humans host _ species of louse, the head louse , the body louse and the pubic louse .

SOLUTION: three

PROBLEM: Large nests provide a home for up to _ million insects.

SOLUTION:
five