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.

Most ducks acquire breeding plumage in the fall, ____ or seven months before other birds.
six

Bees normally live for about thirty days, but infected bees survive for only ____ to five days.
three

Young children suffer from an average of six to ____ colds a year.

eight