Question

1 Complete the zero conditional sentences with the correct form of the verbs in brackets. 1 If you (burn) coal, it (give) off greenhouse gases. 2 A rainbow often (appear) if the sun (come) out when it's raining. 3. If an earthquake (happen) under the ocean, it sometimes (cause) a tsunami. 4 Ifa hurricane (form) over the Indian Ocean, they (call) it a typhoon 5 If you (eat) ice, it (make) your body cold. 6 Floods (happen) if it (rain) a lot more than usual for a long time.​

Answer 1

1. burn, gives

2. appears, comes

3. happens, causes

4. forms, call

5. eat, makes

6. happen, rains

Answer 2

1. If you burn coal, it gives off greenhouse gases.
2. A rainbow often appears if the sun comes out when it's raining.
3. If an earthquake happens under the ocean, it sometimes causes a tsunami.
4. If a hurricane forms over the Indian Ocean, they call it a typhoon.
5. If you eat ice, it makes your body cold.
6. Floods happen if it rains a lot more than usual for a long time.