Before the first nonstop flight made in 1949, it

Before the first non－stop flight made in 1949

Amelia Earhart was the first woman to make the solo nonstop flight across______.A．the Paci

The writer implies in the first paragraph thatA．Louise Johannes was known before the 1940s

When were the chemicals first used in America？A．Before the American Revolution.B．Over thir

Edison failed _____ times before he succeeded in producing the first electric lamp .

阅读理解: C :Terrafugia Inc .said Monday that its new flying car has completed its first flight bringing the company closer to its goal