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: Kittens take solid food within ____ months.

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

A: three
****
Q: Guitars typically have ____ strings.

A:
six
****