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: Scientists divide the mosses into ____ groups .

Answer: eight


Question: Gorillas are sexually mature at ____ to nine years of age.

Answer: six


Question: Infertility affects up to ____ in every five U.S. couples.

Answer:
one