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

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

[EX Q]: Street lamps come in ____ different colors.
[EX A]:
three