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: Pacific salmon leave their home stream, swim out to sea and return ____ to six years later to spawn.

A: one
****
Q: Water is the only substance on earth found naturally in ____ forms - solid, liquid, and gas.

A: three
****
Q: Bats have eight fingers and ____ thumbs like human beings.

A:
two
****