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]: Beryllium is found in a variety of countries on ____ continents.
[A]: five


[Q]: Knee arthroscopy is used basically in ____ ways.
[A]: three


[Q]: Calves remain hidden for much of the time, and are weaned by ____ months of age.
[A]:
three