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]: Insomnia can be short-lived, lasting only one to ____ nights.
[A]: two


[Q]: Distance Reports the distance between the last ____ picked atoms.
[A]: two


[Q]: Electric power means no gas or oil to spill, and ____ pollution in the air.
[A]:
no