In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Q: Most intestinal worms take _ to four weeks for maturation from their larval stages into adults.

A: three
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Q: Crustaceans have _ major body parts .

A: three
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Q: Secondhand smoke can produce _ times the pollution of a busy highway when in a crowded restaurant.

A:
six
****