—Joy how was your holiday? —I had a great time. We went scuba diving in Hainan Island.—Wo

问题补充：

—Joy, how was your holiday?

—I had a great time. We went scuba diving in Hainan Island.

—Wow!

A. That sounds really cool!

B. I’m going to Hainan Island, too.

C. How cool you are!

D. Cheers!

答案：

(答案→)A. That sounds really cool!

B. I’m going to Hainan Island, too.

C. How cool you are!

D. Cheers!

解析：根据对话的语境可知本题的正确答案选 A。