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: Black widows mature in two to ____ months.

A: four
****
Q: Some nurseries only take children aged ____ years and over.

A: two
****
Q: Petunias do best when fertilized every ____ weeks or so with a water-soluble fertilizer.

A:
four
****