A、28. B、96. C、700. D、1 500. A新闻中提到，除了28名幸存者之外，其他人可能已无生存可能。

(5)Concern grows over migrant disasters in the Mediterranean. The United Nations human rights chief accused Europe of a "monumental failure of compassion" on Monday in its response to the soaring number of migrants who are drowning in the Mediterranean. Zeid Raad al-Hussein said he was "horrified but not surprised by this latest tragedy," referring to the capsizing last weekend of a boat filled with 700 migrants or more off the Libyan coast as it headed to the southern Italian island of Lampedusa.(6)All but the 28 survivors who were rescued are feared dead. Lisa Schlein reports on search and rescue efforts. International Organization for Migration spokesman Joel Millman, tells VOA search and rescue missions are continuing. "(7)The waters are calm and the weather is fair right now, the authorities believe there remains a chance to find people."
    The International Organization for Migration reports the death toll this year is more than 1 500, compared with 96 during the first four months of 2014. The majority of migrants making this perilous journey are from Sub-Saharan Africa, Eritrea, Somalia, and Syria. Lisa Schlein for VOA News, Geneva.
5. What is the news report mainly about?
6. How many people survived and did not drown?
7. Why do authorities believe there still is a chance to find people?