Исправьте ошибки. 1.are you skating last sunday? 2.he had been abroad five years ago. 3.when icame home, mother already cooked dinner. 4.by eight o'clock yesterday i did my homework and at eight i had been playing the piano. 5.when jane arrived, i was waiting for two hours. 6.at this time yesterday i sat at the theatre. 7.mr davis had smoked for 30 years when he finally gave it up.
