TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Pangolins walk on all _ of their stout limbs, which are adapted for digging.

SOLUTION: four

PROBLEM: Aspiny neurons are of _ sizes.

SOLUTION: two

PROBLEM: Calves are totally dependent on their mother for the first _ months.

SOLUTION:
three