2. Astronauts __________ around in space because there is no gravity in space. A. fly B. float C. walk D. trace 3. In a weightless environment, everything floats __________. A. uncontrollably B. downwards C. smoothly D. constantly 4. On June 2nd, 1966, Surveyor 1 became the first U.S. __________ to land on the moon. A. flying saucer B. airplane C. spacecraft D. helicopter 5. Mars is the most __________ planet in our Solar System besides Earth. A. powerful B. notable 6. Interviewing applicants for an important job can be a very time- __________ process but it’s worth in the end. A. lasting B. developing 7. Before you start applying for any job, you must be absolutely sure you have the right paper __________. A. qualities B. qualifiers 8. His invention showed that he understood what was going to happen in the future and proved he was __________ of his time. A. in front B. before 9. You have a ticket to the game, __________? A. do you B. haven’t you 10. Kumar asked me a question but I don’t know what __________. A. the answer is B. the answer was
