TASK DEFINITION: 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.
PROBLEM: Uninsured men are up to ____ times more likely to die in the hospital.

SOLUTION: three

PROBLEM: Coastal kelp beds, for example, appear to be three times larger than in the past four or ____ years.

SOLUTION: five

PROBLEM: Bivalves have ____ distinct shells joined by a ligament.

SOLUTION:
two