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:
Measles usually begin with cold-like symptoms followed by a high fever and a rash ____ days later.
answer:
three


question:
Cichlids are popular in the aquarium hobby for a ____ reason.
answer:
four


question:
Prairie dogs have only ____ litter of five pups a year.
answer:

one