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]: Photons have no mass and ____ electrical charge.
[A]: no


[Q]: Most people get one or ____ common colds every year.
[A]: two


[Q]: Semitic words have ____ letter roots.
[A]:
three