Make negative positive sentences and questions 1) The students had finished

1. The students had finished the dinner two hours before that. The students hadnt finished the dinner two hours before that. Had the students finished the dinner two hours before that?
2. She had found her bag. She hadnt found her bag. Had she found her bag?
3. The driver had cleaned the car twice before. The driver hadnt cleaned the car twice before. Had the driver cleaned the car twice before?
4. Sue and Tom had already flown to Moscow. Sue and Tom had not flown to Moscow. Had Sue and Tom already flown to Moscow?
5. The boy had just listened to the radio. The boy hadnt listened to the radio. Had the boy just listened to the radio?