A. imagination
B. imagine
C. imaginative
D. imaginary
A. appearing
B. disappearing
C. disappear
D. appeared
A. effection
B. effect
C. effective
D. effectively
A. earthquakes
B. typhoons
C. volcanoes
D. tornadoes
A. be used seven times and carry passengers to the moon
B. be used over sixty times and can launch Satellites from it
C. be used again and again and can recover a large telescope
D. be used many times and can do experiments in space
A. firing the engines
B. ships which were waiting
C. large parachutes after separating
D. taking the controls of Colombia
A. parachutes
B. rockets
C. astronauts
D. engines
A. In the past, before space shuttles, a spacecraft could only be used one or two times.
B. Space Shuttles will help scientists learn more about space.
C. The rockets separated from the space shuttle when it was in orbit.
D. Colombia will make many more space flights.
A. an excellent pilot and he made a perfect landing
B. a pilot at the top of the shuttle and he made a perfect landing
C. a gentle pilot and he took the control of Colombia
D. a top of the space shuttle and took the controls of Colombia
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