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: Lung disease is America's number three killer, responsible for ____ in seven deaths.\Question: Choose the right answer from options given a) five b) nine c) one d) four

SOLUTION: c

PROBLEM: Earwigs produce ____ or two generations every year.\Question: Choose the right answer from options given a) two b) no c) one d) nine

SOLUTION: c

PROBLEM: Most ladybugs have oval, dome-shaped bodies with ____ short legs.\Question: Choose the right answer from options given a) six b) four c) zero d) five

SOLUTION:
a