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: Gloves have ____ ridges or crevices in which the bacteria can hide.

A: no
****
Q: Every isometry is the composition of one, two, or ____ reflections .

A: three
****
Q: Fats consist of a glycerin molecule with ____ fatty acids attached.

A:
three
****