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: Green lines represent the boundaries between the ____ hemispheres.

SOLUTION: two

PROBLEM: Most programmable circuits have at least ____ channels.

SOLUTION: two

PROBLEM: Saguaros can live nearly ____ hundred years.

SOLUTION:
two