Составить по 4 вопроса (общий, альтернативный, специальный, разделительный) к этим предложениям: 1. In some countries they’ll check the passenger’s certificate of vaccination.
2. The Customs inspector may ask you to open your bags for inspection. After you are through with all customs formalities he will put a stamp on each piece of luggage.
3. Now days people mostly travel by air.
4. Passengers must register their tickets, weigh in and register the luggage.