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

Q: Gravity is the weakest of all _ forces but unlike the others it has an unlimited range.

A: four
****
Q: Southern moles are six to seven inches long and weigh _ to four ounces.

A: three
****
Q: Domestic violence occurs in _ in four families in Australia.

A:
one
****