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:
Early childhood refers to the time period between birth and ____ years of age.
answer:
eight


question:
Mental illness enters the lives of at least one in ____ families.
answer:
four


question:
Sharks use ____ different methods of reproduction.
answer:

three