1. The next morning, a loud sound was heard in a quiet room. <br>2. This true story took place in the United States in the last century. <br>3. The professor is so famous that everyone believes in him. <br>4. But in reality, this is just an experiment. <br>5. Teacher Huang asked us to take a good look at the animals there, especially the giant panda. <br>6. This building is twice as tall as the inner one.
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