Day 20-2021年八年级英语暑假提升天天练之完形填空专练（10空）

Day 20 A Alyssa Carson is a 17-year-old girl. She dreams of being the 1 person to Mars, and she knows that no one has ever been there so far. When she was three, she was interested in becoming a(n) 2 . At that time, there was a popular cartoon called Backyardigans. The characters in the cartoon had been to Mars for many times. The journeys were full of risks, 3 they tried to search for strange information from it. When Alyssa was watching, she felt so 4 that she really wanted to be one of them. After knowing the serious pollution and large population on the earth, Alyssa thinks people may need to 5 another planet to live on in the future. She also thinks Mars is a good place to live on. That's because it is a planet similar to the earth in some ways. Alyssa 6 to go to Mars and work in the field of astrobiology. Alyssa is crazy about her dream. To make her dream come true, she 7 studying and training as hard as she can. She is the first person i