Răspuns:
7. He was playing the piano this time yesterday.
8. He had been playing the piano for two hours when I payed him a visit.
9. It comes to no surprise that his performance is extraordinary, he has been playing the piano since he was a child.
10. It came to no surprise that his performance was extraordinary, he had been practicing for months.
11. Barely had he stopped playing the piano when the audience started to applaude.
12. a. He was playing the piano when I visited him.
b. He used to to play the piano when he was little.
c. He was so annoying... it was almost midnight and he had been playing the piano for hours.
d. He had been playing the piano for two hours when I payed him a visit and still would not stop.
Explicație:
Uses of tenses
