sanonthida35 sanonthida35 26-01-2021 English contestada 4.1) My father leaves his office at 5.30.→By 5.35.....................his office.4.2) They're playing football at 11 o'clock.→ At 11.30..................football.4.3) My little sister goes to bed at 9.30.By 10 o'clock,..............to bed.