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: Primates have ____ digits on their forelimbs.

Answer: five


Question: Carnivals travel for as much as ____ months out of the year.

Answer: seven


Question: Comets are visible for ____ reasons.

Answer:
two