3 Put the verbs in brackets into the correct tense. 1) If you touch a hot frying pan, you ... (to burn) your finger. 2) If Jack
had closed the door, the dog ... (not to run) away. 3) Helen could live by
herself if she ... (to be) older. 4) If only my parents ... (to buy) me a new
bike for my next birthday. 5) When water ... (to boil), it produces steam.
6) If I were you, I... (not to drive) a car in such weather. 7) If Brian ... (to
hear) any news, he would have phoned us immediately. 8) If the bus
arrived half an hour earlier, we ... (to be) in time for the seminar. 9) Sam
... (not to lose) his wallet if he hadn’t put it into the pocket. 10) Nora ...
(to be) surprised if Gordon brought her a bouquet of flowers.

4 Find mistakes and correct them.

1) If you won’t water these flowers, they will fade. 2) They won’t start the
wedding party unless the groom and the bride don’t arrive. 3) If Tina can
skate, we would go to the skating rink.4) If Henry wouldn’t laugh so
loudly, the baby wouldn’t wake up. 5) If I were you, I will consult a
lawyer. 6) Den would have bought you that medicine if you told him about
it. 7) What will Frank do unless he doesn’t pass his driving test? 8) I wish
Chris will finish building his cottage house next year. 9) She will help us
with this project if she worked in our group. 10) If only my teachers hadn’t
give us so much homework to do every day!