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.

Many addicts use opium because they have ____ access to public health care facilities.
no

Violets usually have ____ sepals at the base and have five petals.
five

Most gerbils live three to ____ years and have few health problems.

four