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.

Rabbits have ____ incisors in the upper jaw where rodents have only two.
four

Environmentalists warn that ____ turtle species are in severe decline from over-exploitation.
six

Divine births take place immediately without the ____ months weary course of mortal gestation.
nine