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]: Hawks have ____ toes pointing forward and one pointing backwards.
[A]: three


[Q]: Light chains exist in ____ classes, lambda and kappa.
[A]: two


[Q]: Homosexuals have ____ times the rate of alcoholism, drug abuse and suicide as heterosexuals.
[A]:
three