2. Is the girl surfing

Yes, she is

3.Is the man climbing

No, he isn't

4.what sports are the girls playing

They are playing volleyball

5.what is the woman  doing

She is laying on the sand

6.is the dog swimmng

no, it isn't

2. A. Is the girl surfing?

   B. Yes, the girl is surfing.

3. A. Is the man climbing?

    B. No, he is not climbing. He is playing football.

4. A. What sport are the girls playing?

   B. They are playing voleyball.

5. A. What is the woman doing?

   B. She is taking a sunbath.

6. A. Is the dog swimming?

   B. No, it is not swimming. It is walking.