Answer:
“yet have had no opportunity to find out what the world is like”
Explanation:
This one seems to feel bad for the wifes? because the tone feels like they are maybe sad? unlike the other one's
The Space Race was the name given
Group A I believe
Hot-air balloon flights pioneer air travel
Aviators fly gliders—heavier-than-air aircraft with no engines
Development of engine-powered machines with propellers and lightweight motors
First-ever flight across the English Channel
Construction of the first military airplanes
<span>World's first scheduled commercial airline</span>
I pick A and D because if your business expand more people will work there
