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: Girls are ____ times more likely than boys to attempt suicide.

SOLUTION: three

PROBLEM: Earthquakes are most frequent where ____ or more plates meet.

SOLUTION: two

PROBLEM: Every great circle has ____ poles.

SOLUTION:
two