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.

Wombats measure up to ____ feet long and weigh from thirty to seventy-five pounds.
four

Nymphs go through ____ instars and a pupa stage before reaching adulthood.
three

Power is focused around ____ poles.

two