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]: Some animals have only ____ or three chambers .
[A]: two

[Q]: Arthritis is characterised by ____ major observable changes in the joints.
[A]: four

[Q]: Gliders produce at least ____ distinct odors.
[A]:
three