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: Bilingual teachers are more than people who speak ____ languages.\Question: Choose the right answer from options given a) five b) two c) three d) ten

SOLUTION: b

PROBLEM: Ocular dryness responds to the use of artificial tears applied every ____ to three hours.\Question: Choose the right answer from options given a) no b) one c) three d) eight

SOLUTION: b

PROBLEM: Cougars have ____ toes with three distinct lobes present at the base of the pad.\Question: Choose the right answer from options given a) no b) four c) eight d) zero

SOLUTION:
b