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: Most roots require from ____ to six weeks to dry sufficiently to be safe.\Question: Choose the right answer from options given a) two b) four c) eight 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: Hard disks are an addiction ____ less than heroin.\Question: Choose the right answer from options given a) no b) six c) two d) ten

SOLUTION:
a