We won't see you at 2.30 p.m. unless our train _______ delayed.
will be
is
was
If you _______ well, you will have more energy during the day.
sleep
don't sleep
will sleep
If I _______ angry, I _______ mistakes.
will be / make
will be / will make
am / will make
Unless it _______, we _______ surfing later.
will rain / will go
rains / will go
rain / will go