1. If I were you, I …………………………… this.
won't do
wouldn't do
wouldn't have done
2. If you ………………………. red and green, you will get yellow.
mix
will mix
would mix
3. Unless you ……………………….. smoking, you will get cancer.
quit
don't quit
won't quit
4. If you …………………………. your ways, you will land in serious trouble.
not mend
mend
don't mend
5. If you had called me, I ………………………. come immediately.
will
would
would have
6. If you start now, you ………………………. there on time.
will reach
would reach
would have reached
7. If I learned electronics at college, I ………………………… an engineer.
can become
could become
could have become
8. Unless you stop drinking, you ……………………….. liver trouble.
will develop
will not develop
9. If you see him, ………………………… him to visit me?
will you ask
would you ask
would you have asked
10. If you ………………………. into James, tell him that I am getting married.
run
should run
Either could be used here
11. If he ……………………… late, we will have to leave without him.
is
should be
Either could be used here
12. What would you do if you …………………….. to lose your job?
are
were
had been
