1. I always brush my teeth ___ I go to bed.
a) until
b) before
c) when
d) after
2. When Jane came home, Martin was very tired, because he ___ hard all day.
a) was
b) have been
c) were
d) had been working
3. You are covered with dirt! What ___?
a) have you been doing
b) do you do
c) you have done
d) has you been doing
4. I saw an accident ___ I was walking home.
a) since
b) before
c) after
d) when
5. I ___ my homework so now I can go meet my friends.
a) was doing
b) done
c) have done
d) did
6. Tomorrow from 8 to 10 p.m. I ___ a new movie.
a) will watch
b) will be watching
c) am going to watch
d) have watched