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: Every human being carries six to ____ abnormal recessive genes.

SOLUTION: eight

PROBLEM: Insomnia can be short-lived, lasting only one to ____ nights.

SOLUTION: two

PROBLEM: Aerobic respiration is composed of ____ separate processes.

SOLUTION:
three