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: Uncontrolled diabetes can increase risk by up to ____ times.\Question: Choose the right answer from options given a) five b) four c) seven d) eight

SOLUTION: b

PROBLEM: Islamic practice is based on what are called the ____ pillars of faith.\Question: Choose the right answer from options given a) eight b) one c) five d) four

SOLUTION: c

PROBLEM: Comets are a bit like giant dirty ice-balls with diameters between ____ and fifty kilometres.\Question: Choose the right answer from options given a) three b) seven c) five d) nine

SOLUTION:
c