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: Poles CAN occur at ____ frequency.\Question: Choose the right answer from options given a) six b) four c) zero d) eight

SOLUTION: c

PROBLEM: Lizards generally have ____ legs and movable eyelids.\Question: Choose the right answer from options given a) four b) two c) five d) zero

SOLUTION: a

PROBLEM: Ear infections occur most often in children between ____ months and three years of age.\Question: Choose the right answer from options given a) three b) five c) nine d) zero

SOLUTION:
a