III. Underline the correct alternative according to the info...

III. Underline the correct alternative according to the information in parentheses Example: People will die / die if they don't breathe. (zero conditional)

1. If he calls me, I will speak / speak to him. (first conditional)
2. Wood floats / will float if you put it in water. (zero conditional)
3. If dogs are frightened, they will bark / bark. (zero conditional)
4. If you study hard, you will pass / pass your examination. (first conditional)
5. Water boils / will boil if the temperature reaches 100 degrees Celsius. (zero condifional).
6. I will visit / visit you if I have time. (first conditional)
7. If the temperature is below zero, water will freeze / freezes. (zero conditional)
8. We have / will have lunch together if you arrive on time. (first conditional)