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


question:
Female mealybugs have only ____ nymphal stages.
answer:
three


question:
Sculling is the rowing with ____ oars for each person.
answer:

two