다음 대화의 빈칸에 들어갈 말로 알맞은 것을 고르세요.
A: Hojin, do you have any plans for summer vacation?
B: Of course. I’ll go to the beach with my family. I love swimming in the sea.
A: It sounds fun! Are you ______?
B: Yes, I learned how to swim when I was 7 years old.