You will hear a radio interview about indoor skydiving. For questions 9-18, complete the sentences.
The fans in the tunnel are normally used for putting air into 9 .
It has been said that the machine looks like a huge 10 .
The walls in the tunnel are made of 11 .
The only parts of the body that can get hurt in the tunnel are the 12 .
You have to be 13 years old to use the tunnel.
You have to wear 14 when you use the tunnel.
Beginners have two 15 lessons in the tunnel with an instructor.
During lessons, you get into a position as if you have a 16 in your hands.
The person who created the wind tunnel refers to it as a 17 ‘‘.
Indoor skydiving has become a sport called 18 .