III. Cloze Test （16-35 題，共 20 題） A. Australia fully reopened its international borders to travelers vaccinated 16 the coronavirus after nearly two years of pandemic-related closings as tourists returned and 聞 hundreds of people were reunited with family and friends. Australia closed its borders to almost everyone except citizens and residents in March 2020 17 to slow surging COVID-19 case numbers. Tourism is one of Australia’s biggest industries, worth more than A$60 billion ($43 billion) and 18 about 5% of the country’s workforce. But the sector was crippled after the government shut its borders in March 2020. 19 a champion of COVID-suppression strategy, Australia has shifted away from its fortress-style controls and relentless lockdowns since late last year and began living 20 the virus after reaching higher vaccination levels. Skilled migrants, international 稿 students, and backpackers have been allowed to fly into Australia since November in a staggered reopening exercise.