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.

[EX Q]: Box turtles are mature and capable of mating at ____ years old.
[EX A]: five

[EX Q]: Child care is provided for children ages six weeks through ____ years of age.
[EX A]: four

[EX Q]: Rattlesnakes can produce ____ types of neurotoxins.
[EX A]:
two