Book-crossers 'release' books (5)_____ by passing them on to friends, or else by leaving them in public places for others to pick up, or 'catch', and then read
Complete the second sentence so that it has the similar meaning to the first sentence. Use the word given. Do not change the word. Write your answer on your answer sheet.
It's possible that someone stole your purse when we were in the restaurant. (might)