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.

Body language is used when ____ words can express what the person is trying to communicate.
no

Seasonal records indicate that, in most years, ____ generations occur.
two

Male rats reach sexual maturity at three months, females at ____ months.

four