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: Arthropods are made up of ____ groups of living animals and one group of extinct animals.

A: four
****
Q: Marine biologists have ____ theories on why whales breach.

A: two
****
Q: Perjury is punishable by imprisonment in state prison for two, three or ____ years.

A:
four
****