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:
Human gestation is divided into three trimesters of ____ months each.
answer:
three


question:
Females usually reach sexual maturity at about four years of age, males at about ____ years.
answer:
six


question:
Mosquitoes have ____ distinctive life stages, with the first three stages being spent in the water.
answer:

four