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]: Female dogs come into heat every ____ months or so.
[A]: six


[Q]: Most children recover completely in ____ to three months.
[A]: two


[Q]: Ticks have ____ legs during their first stage.
[A]:
six