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: Most people get one or ____ common colds every year.

A: two
****
Q: Hoatzin has typical foot with ____ toes forwards and one backwards.

A: three
****
Q: Neurological surgeons undergo ____ to eight years of rigorous training following medical school.

A:
six
****