1. Wstaw odpowiednią formę czasownika.
1. If you ............(heat) water to 100 degrees Celsius, it....... (boil).
2. If you .........(heat) the ice it ...........(melt).
3. You ........(bleed) if you ........(cut) your finger.
4. If you ...........(drop) a vase it ........(break).
5. You ............(drown) if you ............(jump) from a bridge to the river.
6. If you .............(want) to leave a message, .............(speak) after the tone.
7. If you ...........(give) a dog a bone, it ...........(bury) it.
8. The dog ...............(bite) you if you ..............(pull) its tail.
9. People............. (not/die) if they eat and drink
10.
Phosphorus ..........(burn) if you ..........(expose) it to air.
2. Wybierz poprawną odpowiedz.
1.If he ............. too much alcohol, he ....... a headache.
a. drinks/will get
b. will drink/gets
c. drinks/gets
2.If you ........ fire to petrol, it .........
a. sets/burns
b. set/burns
c. will set/burns
3. If you ........... too much you get fat.
a. eat
b. will eat
c. eats
4. If you .......... English regularly you speak fluently.
a.
will practice
b. practice
c. is practicing
5. The tea ............ sweet if you add sugar.
a. be
b. will be
c. is
6. If she .........red and white, she ............ pink.
a. mixes/gets
b. will mix/gets c. mix/get
7. You ........... if you stay too long on the beach.
a. sunburn
b. sunburned
c. will sunburn
8. Unless you ........... an umbrella when it is raining you get wet.
a. uses
b. will not use c. use
9. If you ............ to Italy by plain it ............ faster than by car.
a. goes/is
b. go/is
c. goes/be
10. If he ................ ice-cream on the sun it melts.
a. leaves
b. leaving
c. leave
1. Water (boil) if you heat it to 100 degrees.
2. If you (freeze) liquid, it becomes solid.
3. If you mix blue and yellow, you (get) green.
4. Plants (die) if you don’t water them.
5. When you (not eat), you feel hungry.
6. If someone (not work), they don’t have enough money.
7. When the lift (break) down, press the alarm button
Exercise A: Use O conditional.
1 If I ……………………….. (wake up) late, I ………………. (be) late for work.
2 If my husband ………………… (cook), he ………………. (burn) the food.
3 If people …………………. (eat) too much, they ………….. (get) fat.
4 Snakes ……………. (bite) if they ………………… (be) scared.
5 She ………………. (buy) expensive clothes if she ……………. (go) shopping.