The key answer of exercise 3

a)

1. get
2. book
3. leave
4. buy
5. stay
6. rent
7. pack
8. wear
9. carry
10. phone
11. arrive
12. wait

b)

1. He's getting a taxi.
2. She's booking tickets.
3. She's leaving the house.
4. She's buying presents.
5. They're staying in a hotel.
6. He's renting a car.
7. She's packing a suitcase.
8. She's wearing sunglasses.
9. He's carrying a suitcase.
10. He's phoning home.
11. He's staying at a hotel.
12. She's waiting for a flight.