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: Sealants can normally last up to ____ years and hold up very well under normal chewing.

A: five
****
Q: International mail consists of ____ categories of mail.

A: three
****
Q: Corms are ready to dig in four to ____ weeks after blooms are finished or when the tops die off.

A:
six
****