instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Humans host _ species of louse, the head louse , the body louse and the pubic louse .
answer:
three


question:
Rattlers carry the eggs for six or _ months before giving birth.
answer:
seven


question:
Phobias often begin in young children between the ages of _ and eight.
answer:

three