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: Insects are identified by having ____ sets of paired legs, while isopods have seven.

Answer: three


Question: Coastal kelp beds, for example, appear to be three times larger than in the past four or ____ years.

Answer: five


Question: Most insects have ____ pairs of wings.

Answer:
two