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: 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: Diatoms look like ____ shells that fit together.\Question: Choose the right answer from options given a) zero b) one c) two d) seven

SOLUTION: c

PROBLEM: Radiographs show two dimensional representation of ____ dimensional structures.\Question: Choose the right answer from options given a) three b) two c) four d) ten

SOLUTION:
a