1. Why was the man arrested? Because he had been/was being seen breaking into a car
2.By the time the fire brigade got there, the factory was being destroyed/had beendestroyed by the fire
3. The children were still very upset and had been comforted/were being comforted by friends.
4. When she got back home, there was nobody there and all her jewellery was being stolen/had been stolen.
5. The education minister said that at the moment too many children were being educated/had been educated at home