instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Masturbation tends to peak when children are between the ages of _ and five.
answer:
three

question:
Cats There are thirty _ recognised species of cats and a whole host of subspecies or races.
answer:
five

question:
Most people spend four to _ years going to school acquiring skills so they can work.
answer:
eight