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: Younger children can produce as much as ____ times more saliva than adults.\Question: Choose the right answer from options given a) one b) ten c) five d) eight

SOLUTION: d

PROBLEM: Healthcare providers diagnose ____ general types of insomnia.\Question: Choose the right answer from options given a) two b) eight c) one d) three

SOLUTION: a

PROBLEM: African elephants have ____ toes on the front feet and three on the back.\Question: Choose the right answer from options given a) six b) five c) no d) one

SOLUTION:
b