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.

4.1) My father leaves his office at 5.30.

By 5.35 he has has left his office.

4.2) They're playing football at 11 o'clock.

At 11.30 they're playing football.

4.3) My little sister goes to bed at 9.30.

By 10 o'clock she has gone to bed.

ladies and gentlemen, this message that you will hear is to my family:

dear family, you so much for giving me a possibility to live and i am happy that you took care of me and always telling me that i can do everything that i have in mind, you trusted me and still do it, i don't think i need to ask you for more, i love you.

you so much for listening.

hope this you.

sufficient and relevant

explanation: