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]: Humans grow with ____ sets of teeth.
[EX A]: two

[EX Q]: Sexual maturity occurs at ____ to four years for females and four to five years for males.
[EX A]: three

[EX Q]: Tapirs have hoofed toes , with four toes on the front feet and ____ toes on the hind feet .
[EX A]:
three