A) had defined / underwent
B) can define / undergo
C) have defined / had undergone
D) defined / will have undergone
E) define / would have undergone
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For more than three thousand years, from the age of the pharaohs until the 1500s, people --- that the sun, the stars, and the planets --- around the earth
A) have believed / had moved
B) believe / have moved
C) had believed / move
D) were believing / could have moved
E) believed / moved
A) have believed / had moved
B) believe / have moved
C) had believed / move
D) were believing / could have moved
E) believed / moved
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----,it rode aboard the massive Saturn V rocket.
A) Even if the scientists at Nasa were concerned about the quality of the spacecraft Apollo 11
B) Since the spacecraft Apollo 11 had been designed by a special team of engineers.
C) Whether the spacecraft Apollo 11 was to be used for lunar missions
D) Although a lot of money was spent for the development of the spacecraft Apollo 11
E) When the spacecraft Apollo 11 went to the Moon in 1969
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