Theories of Space Visitors and Gap Years

The theory that the earth has been visited, perhaps even colonized, (a)   visitors from outer space has long been a part of popular mythology.

The popularity of the theory (a)   helped considerably by Stanley Kubrick's cult movie, 2001: A Space Odyssey, which came in 1968 and was instantly a great success.

But the idea of visitors ________ space had been very much in the air over the previous twenty years, ever ____x____ 1947 when a businessman called Kenneth Arnold, ____x____ was flying his private plane in Washington state, reported seeing nine shining discs.

(a)  

But the idea of visitors ____x____ space had been very much in the air over the previous twenty years, ever _______ 1947 when a businessman called Kenneth Arnold, ____x___ was flying his private plane in Washington state, reported seeing nine shining discs.

(a)  

But the idea of visitors ____x____ space had been very much in the air over the previous twenty years, ever ___x____ 1947 when a businessman called Kenneth Arnold, _______ was flying his private plane in Washington state, reported seeing nine shining discs.

(a)  

He said they were moving ________ an estimated speed of 1,000 miles ____x____ hour.

• at

• in

• to

• with

He said they were moving ____x____ an estimated speed of 1,000 miles ________ hour.

(a)  

This was widely reported in the press and aroused great interest. Soon sightings of unidentified flying objects, or UFOs ________ short, were being reported ___x_____ over the world.

(a)  

This was widely reported in the press and aroused great interest. Soon sightings of unidentified flying objects, or UFOs ____x____ short, were being reported ________ over the world.

(a)  

There were far ________ many of these reports for them to be dismissed ____x____ pure fantasy.

(a)