1. Did it become interesting? It didn't become interesting.
2. Did I begin working on a respone team last month? I didn't begin working on a respone team last month.
3. Did he break my watch? He didn't break my watch.
4. Did the waiter bring me a glass of water? The waiter didn't bring me a glass of water.
5. Did we build the house ourselves? We didn't build the house ourselves.
6. Did she buy a new car? She didn't buy a new car.
7. Did they choose to go by train? They didn't choose to go by train.
8. Did the birds come back from warm country? The birds didn't come back from warm country.
9. Did he drink a cup of coffee? He didn't drink a cup of coffee.
10. Did we drive a long sitance? We didn't drive a long distance.
11. Did I eat a big breakfast? I didn't eat a big breakfast, so I'm hungry.
Our planet is in danger because HB Earth many environmental problems, extinction of animals, muddy environment