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.

Coastal kelp beds, for example, appear to be three times larger than in the past four or ____ years.
five

Mosquitoes can develop in any stagnant water that lasts more than ____ days.
four

Weasels reaching five to ____ years are regarded as fully mature.

six