1 задание нужно самому,там надо слушать.
2. old generation used to listen to Elvis
3. our grandparents didn't use to talk mobile phones
4. was ringing,was listening
5. were having,arrived
6. came,I had cooked
6. got,had forgotten
7. там спикинг,нужно разговаривать,если хочешь,могу написать.