instruction:
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.
question:
Nymphs go through ____ instars and a pupa stage before reaching adulthood.
answer:
three


question:
Some countries require passports to be valid for ____ months after expiry of the visa.
answer:
six


question:
Most bony fishes reach sexual maturity between ____ and five years.
answer:

one