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').
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Question: Reverse osmosis uses three to ____ gallons of water to produce one gallon of drinking water.\Question: Choose the right answer from options given a) six b) eight c) five d) ten

Answer: d


Question: 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

Answer: b


Question: Black women are ____ times more likely to develop lupus than are white women.\Question: Choose the right answer from options given a) three b) seven c) no d) eight

Answer:
a