SGK Explore New Worlds - Trang 113
4 giờ trước (20:48)
Complete the sentences with 'must', 'have to', 'need to', 'don't have to', or 'don’t need to'.
1. Airline rules say that passengers ______________ be at the gate 15 minutes before departure.
2. We _____________ book the tour. It's not a busy time.
3. Passengers _______________ seated during take off and landing.
4. If we don't want to pay extra, we ______________ leave the hotel before the check-out time.
5. I ______________ pack my bag tonight. I leave tomorrow.
6. You _____________ make reservations for the train. You can buy the ticket on the day you travel.
