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: Most insects have two antennae, six legs, and ____ wings.

Answer: four

Question: Sexual maturity is between ____ and six years of age.

Answer: three

Question: Lead chloride is almost ____ times more soluble in hot water than cold.

Answer:
three