instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Most litters have two to _ kittens.
answer:
four


question:
Some dentists prefer using the oral rinse for _ to five days at a time.
answer:
three


question:
Diarrhea is an illness that kills _ and one-half million children per year.
answer:

three