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: Lizards generally have ____ legs and movable eyelids.\Question: Choose the right answer from options given a) four b) two c) five d) zero

SOLUTION: a

PROBLEM: Babies are breast-fed until about ____ years of age.\Question: Choose the right answer from options given a) four b) nine c) eight d) two

SOLUTION: d

PROBLEM: Mites prefer adult bees less than ____ days old.\Question: Choose the right answer from options given a) no b) four c) six d) ten

SOLUTION:
b