Question

Answer 1

2, He isn't swimming. He is surfing

3, They aren't sailing. They are snorkeling 

4, She isn't snorkeling. She is kayaking

5, She isn't waterskiing. She is sailing

6, He isn't surfing. He is swimming

Answer 2

2 He isn't swimming.He is surfing

3 They aren't sailing.They are snorkeling

4 She isn't snorkeling.She is sailing

5 She isn't waterskiing.She is kayaking(ko chắc chắn TH này,vì lớp 5 chưa học từ này)

6 He isn't surfing.He is swimming