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: Body temperature attains ambient levels within four to ____ hours.

A: six
****
Q: Hypertension afflicts about ____ in four American adults, both men and women, of all ages.

A: one
****
Q: Most children start primary school at ____ years of age.

A:
five
****