с правильным ответом , только с объяснением если можно

I heard Mr Watson attends an international conference.

1)when were you born? i was born in 1980.

2)the light went off and the orchestra started playing.

3) when i came into the kitchen mother was cooking dinner.

4)we had been washing the floor from 3 till 4 yesterday.

5)at 7 yersterday i was playing the piano.

6)when i came home mother had already cooked dinner.

7)tom had translated the text by 7.

8)she had been seeing the film for 1 hour when i rang her up.

9)where were you yesterday?

10) did you finish school last year?

поставь мне "лучшее решение", если несложно.

meat,dress,eyes,soap,apple,read,danger,needle,signaling,cry, dance, sit, chess,running, scratching, rock,