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Fill in the blank with a suitable word in the box.       Space exploration is the investigation of the universe beyond the Earth’s atmosphere, by (1)                          of manned and unmanned spacecraft. Despite the technological advancements achieved in the past, space exploration was only (2)                         until the 20th century. The first successful orbital launch was made by the Soviet Union in 1957 which was called “Sputnik”. When the topic “SPACE EXPLORATION” is put (3)                     the table, aquestion has often been asked: “Why should we spend money on NASA while there are so (4)                          problems here on Earth?” However, this might be partially wrong since exploring the unknown may help us progress.       The advantages of space exploration include the materials (5)                           can be obtained from outer space. For instance, asteroids have iron and nickel which could be utilized to satisfy the (6)                for metal. Therefore, numerous commercial companies have invested in developing technology for asteroid mining. Several comets and asteroids (7)                     solid water in them. This water can be used for astronauts and scientists in space stations. The water can also be broken down to hydrogen which can be used as (8)                   for the rockets. Scientists also believe that dinosaurs disappeared because they couldn’t go to (9)              planet. Sooner or later a killer comet will again cross Earth’s path, threatening all life. Fortunately, (10)                          we have knowledge about comets and space science, we will be able to survive.

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Read the text. Use the information in the story to answer the questions below by choosing the best answer A, B, C or D. COMETS       Andy heard from his friends that a comet was coming. He knew that a comet was a space rock. Space rocks seemed exciting. He wanted to watch it at night. All he had to do was go outside and watch. That was easy enough.       That night, he put on a jacket and went outside. He looked around. He saw the moon, but he did not see anything else. There were only a couple clouds, so that was not the problem. He could see some stars, but nothing new or special. Where was the comet?       He called his friend on the phone. They talked about it. His friend told him where to look, but he still didn’t see it. What was going on? Was he not special enough to see it? Were his eyes going bad? What was he doing wrong?       Andy went to get his dad. Together, they looked up in the sky where it was supposed to be. Finally, after several minutes of looking, he saw a fuzzy thing, brighter and bigger than a star, but nowhere near what he expected.       “I thought it’d be like an extra moon or something.” Andy complained.       “It’s not big enough for that, and it still might be very far away.” Dad explained.       “I still wish I could see it better.”       Dad nodded and went inside. When he came back out, he had a telescope. Together, they focused in and saw the comet a little better. It wasn’t much, but it helped.       “What else can we see?” Andy wondered.       Dad smiled and aimed the telescope over at the moon instead. That was cool. Seeing the craters and the details of the moon up closer was nice.       Astronomy was interesting. Andy made sure to read more about it at school! 1.   What was Andy excited to see in the sky?

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