Поставьте глаголы, стоящие в скобках), в соответствующем времени. 1) my brother (to graduate) from the university last year. 2) he (to work) in his garden when it began to rain. 3) the window is open and i can hear that somebody ( to play) the piano. 4) may i see what book you ( to read) now? 5) he ( to read) when somebody knocked at his door.