In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

Q: Nymphs feed for five to _ weeks before entering the adult stage.

A: eight
****
Q: Allergic rhinitis is the most common allergic disease, with one in _ Canadian adults affected.

A: five
****
Q: Carbohydrates contain _ calories per gram while fat contains nine calories per gram.

A:
four
****