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: Mares normally give birth to their first foal when they are between three and ____ years of.\Question: Choose the right answer from options given a) ten b) no c) six d) four

SOLUTION: c

PROBLEM: Water is present in all ____ phases in Earth s atmosphere.\Question: Choose the right answer from options given a) six b) nine c) two d) three

SOLUTION: d

PROBLEM: Ozone is a form of oxygen in which the molecule contains ____ atoms instead of two.\Question: Choose the right answer from options given a) seven b) five c) three d) eight

SOLUTION:
c