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.

Pathologists study four to ____ years after medical school and their postgraduate training.
five

Scullers use ____ oars, sweep oarsmen pull just one.
two

Surficial deposits range in thickness from ____ to several hundred feet.

zero