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: Animals exhibit ____ patterns for bringing sperm and eggs together.

SOLUTION: two

PROBLEM: Penile cancer occurs almost exclusively in the uncircumcised male at a rate of ____ per million.

SOLUTION: eight

PROBLEM: Some nymphs live underwater for ____ years or more.

SOLUTION:
three