TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Snapdragons are annual flowering plants that grow _ to four feet and thrive on sunshine.

SOLUTION: one

PROBLEM: Healthy people can donate blood as often as once every _ weeks.

SOLUTION: eight

PROBLEM: Human eye are only about _ times sharper than a jumping spider's.

SOLUTION:
five