instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Mares generally give birth to one young every _ years.
answer:
three


question:
Sprouts can grow as much as _ feet per year.
answer:
six


question:
Chipmunks mate once or twice per year and give birth to litters of _ to eight offspring.
answer:

one