A. Complete the exercise with If or Unless.
1. -------- you drive more carefully, you will have an accident.
2. ---------- you prune these trees, they won’t grow well.
3. He’ll get lost ---------------someone shows him the way.
4. ---------------- you practice your English, you can improve it quickly.
5. ------------------ you don’t hurry, you’ll be late for school again.
6. ---------------- there is oxygen, fire cannot burn.
7. --------------------you go to bed late, you’ll feel tired in the morning.
8. My parents will be angry ---------------------- I pass my exams.
9. You can’t travel abroad -----------------you don’t have a passport.
10. You can’t watch TV ----------------you finish your homework.
11.-------------------they lower the price, I won’t buy that computer.
1. -------- you drive more carefully, you will have an accident.
2. ---------- you prune these trees, they won’t grow well.
3. He’ll get lost ---------------someone shows him the way.
4. ---------------- you practice your English, you can improve it quickly.
5. ------------------ you don’t hurry, you’ll be late for school again.
6. ---------------- there is oxygen, fire cannot burn.
7. --------------------you go to bed late, you’ll feel tired in the morning.
8. My parents will be angry ---------------------- I pass my exams.
9. You can’t travel abroad -----------------you don’t have a passport.
10. You can’t watch TV ----------------you finish your homework.
11.-------------------they lower the price, I won’t buy that computer.
B. Complete the exercise with If or When.
1. -------------------I am late this evening, don’t wait for me.
2. ---------- I don’t see you tomorrow, I will phone you.
3. Do you mind --------------I close the window?
4. ---------------------- I get up in the morning I usually drink a cup of coffee.
5. Have something to eat. ---------------you don’t eat now, you’ll be hungry later.
6. John is still at school. ------------------- he leaves, he wants to go to university.
7. Be careful! ----------------you aren’t careful, you’ll fail.
1. -------------------I am late this evening, don’t wait for me.
2. ---------- I don’t see you tomorrow, I will phone you.
3. Do you mind --------------I close the window?
4. ---------------------- I get up in the morning I usually drink a cup of coffee.
5. Have something to eat. ---------------you don’t eat now, you’ll be hungry later.
6. John is still at school. ------------------- he leaves, he wants to go to university.
7. Be careful! ----------------you aren’t careful, you’ll fail.
8. -------------I see him, I will tell you right away.
9. Please call us ---------------- you arrive.
10. I am going to tell her --------------- she comes.
