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: Mature females bear two or even ____ calves a year.

A: three
****
Q: Most people become sick ____ to seven days after infection.

A: two
****
Q: Most insects have ____ or two pairs of wings.

A:
one
****