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.

[Q]: Earthquakes are most frequent where ____ or more plates meet.
[A]: two


[Q]: Babies crawl into a pouch on the mother's belly and stay there ____ months.
[A]: four


[Q]: Veterinarians use ____ primary methods to fight fleas and ticks.
[A]:
two