Ex.1 Put the verbs from brackets in the required form, paying attention to the type of conditional sentences. Zero conditional
1. If you... (heat) snow, it ... (melt) easily. 2.If it ... (rain), the ground ... (get) wet. 3.lf you... (smoke), you ... (get) old early. 4. If people .. (work) hard, they usually ... (go) to bed early.
First conditional
1. If Sasha ... (come) , I.. (be) very surprised. 2. If she ... (not / want) to go out today, I... (cook) her favourit soup myself. 3.lf you ... (not take) an aspirin, your headache ... (not disappear). 4.lf .. (go) to the supermarket later, I... (buy) some tomatoes.
Second conditional
1.lf I.. (have) free time now, I.. (watch) my favourite film. 2.lf I.. (be) you, I.. (not eat) fast food. 3.lf he ... (be) my friend, I.. (invite) him to the party. 4.If I.. (be) taller, I.. (become) a basketball player.