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]: Steam distillation refers to the distillation of ____ immiscible liquids.
[A]: two


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


[Q]: Theobroma oil can exist in ____ different polymorphic forms of which only one is stable.
[A]:
four