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: Pupae usually transform into adults ____ to three days later.\Question: Choose the right answer from options given a) one b) two c) no d) eight

SOLUTION: b

PROBLEM: Harbor porpoises live in groups averaging one to ____ individuals and are very skittish.\Question: Choose the right answer from options given a) seven b) five c) two d) three

SOLUTION: d

PROBLEM: Silks are only receptive to pollen for about ____ days after emergence from the husk.\Question: Choose the right answer from options given a) four b) eight c) six d) ten

SOLUTION:
d