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]: Viceroys produce ____ generations per year, and the food habits of each generation differs.
[A]: three


[Q]: Herbs require at least ____ hours of sunlight.
[A]: six


[Q]: Some adjectives have ____ forms, others have four.
[A]:
two