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: Metamorphosis takes over ____ months and the froglets come out really small.

SOLUTION: five

PROBLEM: Arthritis is characterised by ____ major observable changes in the joints.

SOLUTION: four

PROBLEM: Centrifugal pumps can usually handle up to about ____ percent by volume of air.

SOLUTION:
five