1. Bobby is preparing for the test in his room
2. the dog is barking at some strangers
3. the water in the kettle is boiling
4. Somebody is knocking at the door
5. The children are still sleeping
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1. Bobby is preparing for the test in his room
2. the dog is barking at some strangers
3. the water in the kettle is boiling
4. Somebody is knocking at the door
5. The children are still sleeping