Khóa học phần nghe toefl itp 20 câu sau theo bài Hướng dẫn và trắc nghiệm nghe toefl itp thuộc 20 câu sau – Mã 97104446 30 Th9 Press to start in video What is the purpose of the balloon lunch? To try out eighty new balloons. To commemorate a historic flight. To recruit balloonists from all over the United States. To determine whether helium balloons are better than hot-air balloons. What problem might today’s pilots encounter? They’ll lose money if some balloons can’t take off. There are too many balloons to launch at once. They may not be able to inflate their balloons. Their flight pattern could be uncertain due to the wind. What does the speaker imply about helium balloons? They’re faster than air balloons. They’re expensive. They were the first kind of balloon ever used. They’re popular in the United States. Loading … [irp][related_posts_by_tax title=""]
