Conditional sentences exercises aimed at 1st of Bachillerato students.

1. Exercises
M.Reig

2.  1) Rewrite these sentences. Use UNLESS or IF:
 1. I won’t understand if he doesn’t speak slowly.
 Unless he speaks slowly, he won’t understand.
 2. We’ll miss the bus unless we run.
 If we don’t run, we’ll miss the bus.
 3. You’ll fail your exams if you don’t work harder.
 Unless you work harder, you’ll fail your exams.
 4. If the weather doesn’t get worse, we’ll play
tennis.
 Unless the weather gets worse, we’ll play tennis.

3.  5. We won’t go out unless it stops raining.
 If it doesn’t stop raining, we won’t go out.
 6. I won’t be prepared for the exam if I don’t study
all night.
 Unless I study all night, I won’t be prepared for the
exam.
 7. If Tomas doesn’t wake up early, he’ll be late for
work.
 Unless Tomas wakes up early, he’ll be late for work.
 8. If you don’t go to Japan, you won’t learn
Japanese.
 Unless you go to Japan, you won’t learn
Japanese.

4.  9. If you don’t drive carefully, I won’t lend you my
car.
 Unless you drive carefully, I won’t lend you my
car.
 10. We’ll be late if we don’t hurry.
 We’ll be late unless we hurry.
 11. You must study more or you won’t pass the
exam.
 Unless you study more, you won’t pass the exam.
 12. The dog will attack you only if you move.
 Unless you move, the dog won’t attack you.

5.  2) Rewrite each sentence beginning as shown, so that
the meaning stays the same

 A) I didn't have an umbrella with me and so I got wet.
 I wouldn't have got wet if I had had an umbrella.
 B) I'll call the police if you don't leave me alone!
 Unless you leave me alone I’ll call the police.
 C) In the snowy weather we don't go to school.
 If it snows, we don’t go to school.
 D) Without Jack's help, I wouldn't have been able to
move the table.
 If Jack hadn’t helped me, I wouldn't have been able
to move the table.

6.  E) You drink too much coffee, that's why you can't
sleep.
 If you drank less coffee, you could sleep.
 F) You press this button to stop the machine.
 If you press this button, the machine will stop.
 G) Make me some coffee, and I'll give you one of my
biscuits.
 If you make me some coffee, I’ll give you one of my
biscuits.

7.  3) Rewrite these sentences using the second or third
conditional:
 1) I didn’t work for my exams, so I failed.
 If I had worked for my exams, I wouldn’t have failed.
 2) We have no scissors, so we can’t cut it well.
 If we had scissors, we could cut it well.
 3) He was late to work because he didn’t take a taxi.
 If he had taken a taxi, he wouldn’t have been late.
 4) Peter eats a lot, that’s the reason why he is so fat.
 If Peter didn’t eat a lot, he wouldn’t be so fat.
 5) She isn’t happy in her marriage, possibly because he
doesn’t pay her any attention.
 If he paid her more attention, she would be happy in her
marriage.

8.  6) I don’t go swimming because there isn’t a
swimming pool nearby.
 If there were a swimming pool nearby, I would go
swimming.
 7) We arrived late because our car broke down.
 If our car hadn’t broken down, we wouldn’t have
arrived late.
 8) It was raining so I didn’t go to the park.
 If it hadn’t been raining, I would have gone to the
park.
 9) William didn’t apply for the job. Consequently he
didn’t get the job.
 If William had applied for the job, he would have got
it.

9.  10) I didn’t have enough money, so I couldn’t buy a new
car.
 If I had had enough money, I could have bought a new
car.
 11) They speak French to her, not English, so her English
doesn’t improve.
 If they spoke English to her, her English would improved.
 12) My number isn’t in the directory so people don’t
telephone me.
 If my number were in the directory, people would phone
me.
 13) I’m fat. That’s why I can’t get through the bathroom
window.
 If I weren’t so fat, I could get through the bathroom
window.
 14) I can’t drive so we can’t take the car.
 If I could drive, we could take the car.

10.  15) We have no ladder so we can’t get over the wall.
 If we had a ladder, we could get over the wall.
 16) I didn’t see the signal, so I didn’t stop.
 If I had seen the signal, I would have stopped.
 17) English people speak very quickly. Perhaps that’s why I
don’t understand them.
 If English people spoke slower, I would understand them.
 18) She didn’t know you were on hospital, so she didn’t visit
you.
 If I had known you were on hospital, I would have visited
you.
 19) We didn’t visit the museum because we didn’t have
time.
 If we had had time, we would have visited the museum.

11.  20) We missed the train because we used an out-of-date
timetable.
 If we hadn’t used an out-of-date timetable, we wouldn’t
have missed the train.
 21) The sweater shrank because you washed it in boiling
water.
 If you hadn’t washed the sweater in boiling water, it
wouldn’t have shrunk.
 22) He looks unattractive because he never shaves.
 If he shaved, he would look attractive.
 23)The house is quite cold because I haven’t got central
heating.
 If I had central heating, the house would be warm.
 24) I didn’t work hard at school so I didn’t get a good job.
 If I had worked hard at school, II would have got a good
job.