1. 当官方宣布这个故事是玩笑时，成千上万的人已逃离了家园。(reveal, hoax, flee from)
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2. Welles宣布火星人已经在地球着陆。(announce, aliens, from Mars, land) 
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3. 一个记者宣布意大利面的种植者已停止种植。(announce, spaghetti farmers)
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4. 当人们意识到这个故事是个玩笑时，全国的意大利面已售完。(realize, hoax, sell out) 
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