102 - Book 2 - Unit 11 - Pg. 90 - Vocab... Vocabulary (Ai Listen to the audio tracks. Choose the correct word/words from the box and answer the questions below. baggage collection security officer check-in customs boarding gate 1. What is the first step when you arrive at the airport? 2. Who checks the things you carry on an airplane? 3. Where do the passengers wait before they board their flights? 4. What do you call the area from where you collect your bags? 5. At which point are you asked questions about the purpose of your visit?