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: Female elephants have babies about ____ years apart, and they have only one each time.\Question: Choose the right answer from options given a) eight b) one c) zero d) three

SOLUTION: d

PROBLEM: Copper is ____ times higher in dog liver than in human liver.\Question: Choose the right answer from options given a) three b) ten c) six d) one

SOLUTION: b

PROBLEM: Most modern computers have ____ bits to a byte.\Question: Choose the right answer from options given a) five b) zero c) ten d) eight

SOLUTION:
d