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.
--------
Question: Exposure can occur in ____ general ways, ingestion, skin contact and inhalation.

Answer: three

Question: Milk contains ____ complex carbohydrates.

Answer: zero

Question: Atomic theory describes atoms as made up of ____ different components.

Answer:
three