FIRST CONDITIONAL EXERCISES

Complete the sentences with the verbs in brackets. Use the First Conditional.

1. 1  If we ............................ (go) to London, we ...................... (visit) my friend George. 
2. 2  If she ...................... (do) well in her exams, my sister ...................... (go) to university. 
3. 3  Jenny ...................... (not eat) supper if she ...................... (eat) all that ice cream. 
4. 4  My brother ...................... (drive) us to the cinema if we ...................... (ask) him. 
5. 5  Uncle Tim ...................... (phone) us if he ...................... (want) to come with us. 
   6.  If you .......................... (bring) the sandwiches for the picnic, I ..................... (bring) the drinks.
   7.  If he ............................. (talk) too long, his parents .......................... (not let) him use the phone.
   8.  He ................................... (turn) on the heater if it .......................... (be) too cold.
   9.  You .................................... (understand) the questions unless you .......................... (read) the book. 

Rewrite these sentences using IF or UNLESS.
1. If you don't start now, you will not reach there in time.
2. I will take the job unless the pay is too low.
3. I will be surprised if he doesn’t have an accident soon.
4. If she doesn’t stop smoking, she will fall seriously ill.
5. The situation won't get better unless we do something immdiately.
6. You will never understand English grammar unless you study this language.
7. If he doesn't hurry up, he will be late.
8. Beer is great if unless you drink too much of it.
9. Unless the teacher needs more space, this small classroom will be OK.
10. If it doesn't stop raining, we will not have a picnic.

IF / UNLESS

- Rewrite these sentences using IF or UNLESS.

1. If you do not finish the job in time, you will be sacked.

2. Unless he works hard, he will not pass.

3. If the he doesn't reach school in time, he will be punished.

4. You'll be sick if you don't stop eating.

5. My brother will be late for the show if he doesn't hurry.

6. You will be cold unless you wear a jacket. 

IF/UNLESS

1. Unless Sammy feels well, he won’t go to school.
2. If you don’t water the plants, they will die. 
3. We will go bicycle riding this afternoon unless it rains. 
4. Unless the boy behaves himself, he won’t go to the cinema
5. He will be very tired unless he has a rest
6. If she doesn’t phone me, I won’t phone her. 
7. David will not buy a car if he doesn't pass his driving test.

IF or UNLESS

Rewrite these sentences using IF or UNLESS.
1. If you don't start now, you will not reach there in time.
2. I will take the job unless the pay is too low.
3. I will be surprised if he doesn’t have an accident soon.
4. If she doesn’t stop smoking, she will fall seriously ill.
5. The situation won't get better unless we do something immdiately.
6. You will never understand English grammar unless you study this language.
7. If he doesn't hurry up, he will be late.
8. Beer is great if unless you drink too much of it.
9. Unless the teacher needs more space, this small classroom will be OK.
10. If it doesn't stop raining, we will not have a picnic.