TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Degradation is a result of _ simultaneous processes.

SOLUTION: two

PROBLEM: Thermal equilibrium occurs when _ bodies have the same temperature.

SOLUTION: two

PROBLEM: People often have to wait between _ and five years for an organ especially for a liver.

SOLUTION:
three