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: Bucks grow antlers each year that reach ____ to six feet in spread.\Question: Choose the right answer from options given a) seven b) one c) three d) five

SOLUTION: d

PROBLEM: Tetrapods are animals that have ____ legs or leg-like appendages.\Question: Choose the right answer from options given a) four b) one c) ten d) six

SOLUTION: a

PROBLEM: Aardvarks have four toes on the front feet and ____ toes on their back feet.\Question: Choose the right answer from options given a) six b) one c) four d) five

SOLUTION:
d