We use by with a point in time. The car will be ready by Friday. (= Friday or
The accounts will be finished by the end of the month.
(= end of the month or earlier)
The work was done by 6pm. (=6pm or maybe it was finished
use until for the end of a period of time.
It rained until Friday. (= for a period of time and stopped
I'll be busy until 3.30pm. (for the period of time up
to 3.30. After 3.30 I won't be busy).
We'll be working hard until 6pm. (= for the period of
time up to 6pm. After 6pm we won't be working hard.)
the missing words. I have to be home
We're going out for dinner. If I am home
5 I'll have
6.30pm to have a shower and get dressed. I have to buy some flowers
on the way. The florist (flower shop) is open
be at the restaurant