【单选题】听力原文: Balloons have been used for sport for about 100 years. There are two kinds of sport balloons: gas and hot air. Hot air balloons are safer than gas balloons, which may catch fire. Hot air balloon...
【多选题】Look at the headings and captions in the article. The History of Soccer Without a doubt, soccer is the most popular sport in the world. Around 250 million people from more than 200 countries regular...