TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Mature cysts have _ nuclei while the immature have two.

SOLUTION: four

PROBLEM: Corms are undifferentiated, uniform, and contain _ rings when cut apart.

SOLUTION: no

PROBLEM: Monsoons coming every _ to seven years can add almost a foot of water to the mountain's surface.

SOLUTION:
three