TASK DEFINITION: Given a sentence with a missing word, pick the answer option that best fills out the missing word in the sentence. Indicate each answer with its index ('a', 'b', 'c', 'd').
PROBLEM: Angiosperms inhabit all ____ continents, as well as the oceans.\Question: Choose the right answer from options given a) five b) seven c) three d) zero

SOLUTION: b

PROBLEM: Foresters usually work ____ hours a day, five days a week.\Question: Choose the right answer from options given a) six b) five c) seven d) eight

SOLUTION: d

PROBLEM: District judges are attorneys who are elected on non-partisan ballots for terms of ____ years.\Question: Choose the right answer from options given a) six b) one c) two d) zero

SOLUTION:
a