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: Clover leaves with ____ to nine leaflets, illustrating a tendency to mutate.\Question: Choose the right answer from options given a) three b) zero c) ten d) five

SOLUTION: a

PROBLEM: Infants usually die of pneumonia or other infections before reaching ____ years of age.\Question: Choose the right answer from options given a) nine b) four c) zero d) eight

SOLUTION: b

PROBLEM: Compound machines contain ____ or more simple machines.\Question: Choose the right answer from options given a) three b) four c) no d) two

SOLUTION:
d