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: Raindrops produce ____ types of sound underwater.

Answer: two


Question: Snowmobiles can accommodate ____ riders per vehicle.

Answer: two


Question: Turbinates sit in ____ pairs in the nasal cavity.

Answer:
three