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.

[EX Q]: Primates have ____ digits on their forelimbs.
[EX A]: five

[EX Q]: Metamorphosis takes over ____ months and the froglets come out really small.
[EX A]: five

[EX Q]: Any solid angle is contained by plane angles whose sum is less than ____ right angles.
[EX A]:
four