Which of these sentences states the main idea of the article?
The first people to travel by hot air balloon took off and landed safely.
The Montgolfier brothers first showed their hot air balloon to the public in Annonay.
The Montgolfier brothers invented the hot air balloon, the first passenger aircraft.
The first passengers in a hot air balloon were a sheep, a duck, and a rooster.
1 answer
The Montgolfier brothers invented the hot air balloon, the first passenger aircraft.
1 answer