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: Gasoline is ____ times as expensive as in the United States.\Question: Choose the right answer from options given a) two b) four c) three d) ten

SOLUTION: c

PROBLEM: Scorpions can live for ____ to seven years.\Question: Choose the right answer from options given a) one b) six c) five d) three

SOLUTION: d

PROBLEM: Most polyps cause ____ symptoms and take five to seven years to change to cancer.\Question: Choose the right answer from options given a) two b) nine c) eight d) no

SOLUTION:
d