You will hear a radio report about dolphins. For questions 9-18, complete the notes below which summarise what the speaker says.
Dolphins have been known to protect swimmers from sharks by getting into a 9 .
Dolphins and humans have 10 of the same size.
Swimming with dolphins can help common problems like 11 .
Some people think dolphins are able to recognise human 12 .
Dolphins have been used to teach children to 13 .
Swimming with dolphins is used as a 14 in projects with children.
In one jaw, dolphins have as many as 15 .
Dolphins can maintain a fast pace in the water for 16 without stopping.
Dolphins make use of 17 to find fish.
Dolphins can be caught in 18 or damaged by pollution.