1. Choose the option (A, B, or C) that best completes each numbered blank in the passage. (10 points)

Inside the space shuttle, life is quite like that on Earth, except for zero gravity. The astronaut does not (6) A. wear a spacesuit all day round. He just needs it for exploration (7) C. in space or for the launching flight. Astronauts need cotton shirts and underwear just as we do on Earth. (8) A. However, he cannot wash his clothes easily. What about baths? As water does not flow in zero gravity, he (9) C. must to clean himself with wet towels or (10) B. wash his hair with waterless shampoo.

1. Fill in each blank with ONE suitable word. (10 points)

Space exploration costs a lot of money. Is it really necessary? Up to now, very few astronauts have had chances to visit space. (11) It benefits in many ways. Satellites in space send information to (12) Earth. Communications satellites mean easy a