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]: Western medicine uses ____ approaches, drugs or surgery.
[A]: two


[Q]: Psychology is founded on ____ false premises that are all humanistic from the core.
[A]: eight


[Q]: Dragonflies have ____ pairs of wings.
[A]:
two