Question

In which sentence is the underlined word a present participle?


It is exciting to see the raised head of a dolphin in the water!

When dolphins are above the water, they are breathing air.

Swimming dolphins need to break the surface for air every two minutes.

Answer 1

1
exciting is a present participle raised is not. It is a past participle

2.
breathing is a present participle

3.
Swimming dolphins swimming is
Need is not a participle. It is just a common garden verb. 

Answer 2

Answer:

Swimming dolphins need to break the surface for air every two minutes.