In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Q: Catholic systems comprise _ of the twenty largest healthcare systems in the country.

A: ten
****
Q: Some people routinely sleep only _ hours a night but feel fine during the day.

A: four
****
Q: GAS can be present in the throat or on the skin and cause _ symptoms of disease.

A:
no
****