[A] In the train
[B] On the ship
[C] In the plane
18 Why has the captain asked the passengers to keep their seat belts on?
[A] The plane is going to land
[B] The plane is going to take off
[C] The air might become very rough
19 What has the captain asked the passengers not to do during this summer?
[A] Order drinks
[B] Smoke cigarettes
[C] Use the toilets
20 When will the passengers be able to get up again?
[A] When an air-hostess says so
[B] When the seat-belt sign goes off
[C] When the captain makes another announcement.