1. (2021·杨浦模拟) Listen to the dialogue and complete the following sentences. (听对话，用听到的单词完成下列内容，每空格限填一词。)

1. （1） A British couple had a after they were lost at sea for five hours.
3. （2） Qn the of their holiday, the Browns had a frightening experience.
5. （3） The Browns had to go back to their boat because the sea was .
7. （4） The Browns swam away from the shore (岸) to avoid some .
9. （5） When they were out at sea, the Browns were for sharks all the time.