SGK Explore New Worlds - Trang 155
23 tháng 11 lúc 18:01
Circle the correct form.
1. When you get to the airport, you must / don't need to check the weight of your bags.
2. Did Luisa have to / must check any baggage?
3. All travelers must / need to go through the airport security check.
4. You don't need to / must show your passport on arrival.
5. Travelers don't have to / must check their carry-on bag.
