TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Humans begin laughing at _ to three months of age.

SOLUTION: two

PROBLEM: Carbon comes in _ kinds- dust, coconut shell or granulated.

SOLUTION: three

PROBLEM: Flatbed scanners can also record _ dimensional objects of many sizes and shapes.

SOLUTION:
three