Вопрос по английскому языку:

1)Look at the time. I think I ....... the bus.
a)does hear
b)hear
c)am heard
d)am hearing

2)When I ... Jill yesterday she was reading the contract.
a) phoned
b)had phoned
c)was phoned
d)has phoned

3)Tom's working day .... at 8 o'clock
a)is beginning
b)begins
c)was beginning
d)have begun