A、Sharks. B、Dolphins. C、Tropical fishes. D、Crocodiles. D选项都和海洋生物有关。We saw a lot of sharks and dolphins... the tropical fishes...

M: Hi, Maggie! Haven’t seen you for long! Where have you been these days?
W: I’ve been to Hong Kong for a few days.
M: Oh, have you been there on business?
W: No. Actually I’ve been there for a break with my boyfriend.
M: Really? I guess you must have had a wonderful time. Where did you go?
W: Yes, indeed. Hong Kong is such a lovely city, and it has got so much to see and do. We got up early and went to bed late, it was rather tiring. We went to Ocean Park. It was so much fun! We saw a lot of sharks and dolphins; they were very cute when they were giving performances. Besides, the tropical fishes are just fantastic. I’ve even decided to keep some fish at my place.
M: Sounds interesting. Have you been to the Peak?
W: Yes, of course. We took the cable car there, and we enjoyed a superb view of the whole Hong Kong, including the famous Bank of China Building. And we also went to Lantau Island, to visit the huge statue of Buddha.
M: Did you take any photos?
W: Yes. In fact, we took the video camera with us. Would you like to come over some day and watch the tapes?
M: That would be great! Do you believe in Buddhism?
W: Oh, no! I just appreciate the sculpture and listen to the stories about it. I’d like to tell you the stories, but I’m afraid I’d better go home now otherwise I won’t catch the last bus. I’m sorry.
M: Never Mind. I’d better leave, too. See you tomorrow.