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.

[Q]: Climbers are the most frequent cause of injury for children ____ and older.
[A]: six


[Q]: Tuataras reproduce very slowly, sometimes taking ____ years to reach sexual maturity.
[A]: ten


[Q]: Average litters contain three to ____ kittens.
[A]:
six