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: Baby elephants are usually dependent on mother s milk for at least ____ years.\Question: Choose the right answer from options given a) six b) three c) two d) seven

SOLUTION: b

PROBLEM: Ozone is a molecule containing ____ oxygen atoms.\Question: Choose the right answer from options given a) one b) nine c) no d) three

SOLUTION: d

PROBLEM: Bilateral animals have ____ axes of symmetry.\Question: Choose the right answer from options given a) ten b) three c) six d) eight

SOLUTION:
b