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.

Sexual maturity is reached at ____ years, and females calve every other year.
four

Irrigated land is almost ____ times as productive as rainfed cropland.
three

Inflicted injury is ____ times more likely to result in death than unintentional injury.

five