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: Cigarette smokers are ____ times more likely to die of lung cancer than nonsmokers.\Question: Choose the right answer from options given a) ten b) six c) four d) nine

SOLUTION: a

PROBLEM: Human malaria is caused by ____ species of Plasmodium . .\Question: Choose the right answer from options given a) six b) ten c) seven d) four

SOLUTION: d

PROBLEM: Females stop giving milk and animals of both sexes stop growing for about ____ weeks.\Question: Choose the right answer from options given a) six b) nine c) three d) ten

SOLUTION:
c