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.

[EX Q]: Numbers can be positive or ____ only.
[EX A]: zero

[EX Q]: Female smokers enter menopause an average of ____ years earlier than nonsmokers.
[EX A]: five

[EX Q]: Carbon has ____ stable, naturally occurring isotopes .
[EX A]:
two