readthefollowingtextandchoosethemostsuitableheadingfrom...
问题详情：readthefollowingtextandchoosethemostsuitableheadingfromA-Fforeachparagraph．Thereisoneextraheading,whichyoudonotneed.A. TuvaluanpeoplebecamerichovernightB. Signsofsinkinghaveap...