instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Mice are fertile animals because female mice come into heat every _ to five days.
answer:
four


question:
Pups are unable to swim or find food until seven to _ weeks old or until the ice melts .
answer:
eight


question:
Most people stay three or four years, sometimes five or _ years.
answer:

six