A、77. B、150. C、115. D、24. D新闻开头提到，萨摩亚群岛萨总理称南太平洋发生的海啸中，有77人丧生，随后讲到美属萨摩亚的死亡人数至少为24。故D正确。A是海啸遇难者的总数，B是海啸伤者的数量，C是利用新闻中出现的150设置语音干扰。

The Prime Minister of Samoa says 77 people were killed and 150 injured by a tsunami in the South Pacific. At least 24 people died on American Samoa. Thousands of people’s homes have been destroyed and the final number of deaths is expected to be higher as reports from Sydney.
    A cruel act of nature has destroyed parts of Samoa and neighboring American Samoa. The rescue effort is continuing with pledges of international support led by the United States. The number of dead has slowly increased since the tsunami struck after dawn and there are fears it will keep on rising as emergency teams reach isolated areas. Foreign tourists including a British baby and a 6-year-old Australian girl are among the deaths. Officials believe that many of the victims were washed out to sea as their homes were destroyed by waves reportedly up to 11 meters high.
    3. How many people were killed by the tsunami on American Samoa?
    4. What do we learn about the tsunami from the news report?