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1. The zero conditional English

   • it is a type of conditional that is used to: Express a cause-effect relationship in the facts that are always true (scientific facts, particular facts

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3. When is the zero conditional used?

   • is used to express facts that are always true
     • Furthermore, the zero conditional can also be used to give instructions. In this specific case we will use an imperative to express the warning. Look at the example: Don’t open the door if someone knocks.

4. Differences between the first conditional and the zero conditional

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