MEC 3 FINAL REVIEW - MARIA HELENA'S TEXT

5. “People have been interested in exploring space ever since they first looked up into the sky and saw the stars. Today we are quite used to the idea of space travel. During the second half of this century, man [ has  /  must have  / could have  /  was ] orbited the earth, walked on the moon, and sent space vehicles to [ list  /  photograph / picture  /  note ] other planets. The successful flight of the first space shuttle, the Columbia, was an especially important [ explosion  /  development  /  accident  /  news ] in the history of the space travel. First [ thrown  /  started  /  launched  /  fired ] in 1981, the Columbia traveled into space and returned to earth where it was used [ over  /  for  /  with  /  by ] other trips into space. All earlier space-going vehicles had [ either  /  once  /  whether  /  rather ] been left in space or had burned up [ then  /  till  /  yet  /  when ] reentering the earth’s atmosphere.

The construction of other shuttles has [ greatly  /  mostly  /  mainly  /  constantly ] reduced the cost of space travel and research. In the future, the shuttles [ may  /  have to  /  should  /  would ] carry materials to establish space stations and factories and, perhaps, even colonies.

[ Any  /  A  /  The  /  That ] space shuttle has opened a new era in space travel, and the hope that space exploration will answer many questions about the universe is closer to becoming a reality.”