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

[EX Q]: Most volcanoes erupt for _ to four weeks and then rest.
[EX A]: three

[EX Q]: Most people go back to work within _ to three months after having a heart attack.
[EX A]: one

[EX Q]: Downies range in age from eighteen months to _ years.
[EX A]:
three