ZERO CONDITIONAL - CERTAINTY IF/WHEN CONDITION RESULT PRESENT SIMPLE it melts PRESENT SIMPLE If/When you heat butter RESULT PRESENT SIMPLE Butter melts IF/WHEN CONDITION PRESENT SIMPLE If/when you heat it We use the zero conditional when the result of the condition is always true and obvious. Exercise Write the verbs in brackets. Use the ZERO conditional. 1-If it (rain), the streets, (get) wet. 2-My mother (get) angry when I 3- If you (run) too fast, you, (not do) my homework every day. (get) really exhausted. 4-1 can't (understand) Elizabeth when she 5-If Madeleine (miss) the seven o'clock train, she 6- When you (turn on) an electric al appliance, the electricity meter (speak) so quickly. (be) late for work. (go) up. 7- My little sister always (cry) when she (be) hungry. 8-When you (drink) too much alcohol, you sure, (get) drunk. It's dangerous. 9-The mountains (get) white when it (snow). 10-If you (don't drink) enough water, you (become) dehydrated. 11-You (gain) weigh if you (eat) too much sugar and fried food. 12-When my mother (have) a toothache, she always, (take) an aspirin. 13-If you (mix) red and blue, you (get) purple. 14-Plants (die) if they. 15- If you (break) a leg, it (not get) enough water. (hurt) and it's very painful. 16- When my friends (tell) me an important secret, I never (tell) it to anyone. 17- You (get) a substantial fine if you (not pay) your taxes. 18- If you (not get) enough vitamins and iron, you (suffer) from anaemia.​