TASK DEFINITION: Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.
PROBLEM: Most orthoptists work ____ hours a day, four or five days a week.

SOLUTION: eight

PROBLEM: Numbers can be positive or ____ only.

SOLUTION: zero

PROBLEM: Plants grow to a height of ____ to twelve inches.

SOLUTION:
ten