Ответ:
1. English professor asks what the difference between an active verb and a passive verb is. A student answers that an active verb shows action and a passive verb shows passion.
2. Professor asks if a student can say anything about the freat scientists of the 17th century. A student answers that they are all dead.
3. A motorist asks if he was driving too fast. A policeman replied that he was flying too low.
3. A friend asks what a father's son is going to be when he has passed his final exam. A father answers that his son is going to be an old man.
4. A man asks another man if he is going to Milberry's lecture that day. The other answers positively. The first one gives a piece of advice to not go there because that lecturer is poor. The other one confesses that he is obliged to go, as he actually is that lecturer.
5. A lecturer jokingly advises ladies to emigrate to that part of the world, but then, seeing as one young lady is leaving a room, he adds that this emigration doesn't have to happen in such a rush.
Объяснение:
В четвертом и пятом примерах небольшой вольный перефраз, но в любом случае косвенная речь правильная.