How do we CHECK IN at the airport?
举一反三
- How do you get a cart at the airport?
- What do we need to do to check the validity of a research topic?
- How many pieces of luggage do you want to check?
- What preparation work should we do before we go to the airport to meet the guest(s)?
- What should you remember to do if you are returning the car to an airport?Remember to_____________to check in to your flight.