When an old building is to be torn down, Mr. Pham’s company removes the bricks, cleans off the mortar from the bricks, and then sells the bricks to companies that restore historic buildings. Which compound is Mr. Pham’s company most likely to use in its work?

Ok, so, i need questions and answers for what to ask someone before you go on a flight. i have a speaking test, and basically i’m sitting in front of my teacher, and she’s asking me questions (in german) and i have to answer in german. however, i need questions to ask her. like about the flight, could i get a cheaper ticket, stuff like that. i’ve never been on a plane before, so i have no idea what to ask. ! using hoch-deutsch!