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.
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Question: Aboriginal society is divided into ____ complementary branches.

Answer: two


Question: White men are almost ____ times more likely to develop cancer of the testicles than are black men.

Answer: five


Question: Dolphins communicate by making ____ types of sounds.

Answer:
two