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.

Most children start primary school at ____ years of age.
five

Most ovarian cysts go away on their own in ____ to three months without causing any problems.
one

Histiocytosis represents ____ related diseases which range from benign to aggressive.

three