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.

[Q]: Most ovarian cysts go away on their own in ____ to three months without causing any problems.
[A]: one


[Q]: Sexual maturity occurs at ____ to four years for females and four to five years for males.
[A]: three


[Q]: Every week has seven days, seven days, ____ days.
[A]:
seven