All ears {Ans: ready to listen}Raining Cats and Dogs {Ans: raining a lot}flatten {Ans: to make flat}Pre (prefix) {Ans: before}weather {Ans: conditions in the atmosphere}librarian {Ans: a person who works in a library}to nail {Ans: to fasten}safely {Ans: protection from danger}passenger {Ans: traveler}to check out {Ans: to borrow a book from the library}cargo {Ans: things carried by ship or plane}hole punch {Ans: a small piece of equipment used for making holes in paper}pebbles {Ans: small stones}measures {Ans: to calculate the size}to put away {Ans: return}Spill the beans {Ans: To tell a secret.}cost an arm and a leg {Ans: very expensive}a piece of cake {Ans: easy}to outline {Ans: Give a brief account or summary}melted {Ans: became liquid through heat}