HomeGrammarConditionals ExercisesEasy Conditionals Review — Zero and First

Easy Conditionals Review — Zero and First

A2-B1 Level

This easy review exercise focuses on the two most common conditional types: the zero conditional for general truths and the first conditional for real future possibilities. The zero conditional uses present simple in both clauses: "If you heat water, it boils." The first conditional uses present simple in the if-clause and "will" in the result clause: "If it rains tomorrow, I will take an umbrella." These two types share the same if-clause structure (present simple), which is why they work well as a pair.

At A2-B1 level, the main challenge is choosing between zero and first conditional. Ask yourself: is this always true, or is it about a specific future situation? "If you press this button, the door opens" (zero — always true). "If you press this button, the alarm will go off" (first — a specific future warning). This review mixes both types randomly to test whether you can switch between them. Practising this distinction prepares you for the Cambridge B1 Preliminary exam, where both conditionals appear regularly in reading and use of English exercises.

Quick Rule

Zero: If + present simple, present simple | First: If + present simple, will + base verb

  • 1.If you mix red and blue, you get purple. (zero — always true)
  • 2.If she studies hard, she will pass the exam. (first — future possibility)
  • 3.If water reaches 100°C, it boils. (zero — scientific fact)
  • 4.If we leave now, we will catch the 7 o'clock train. (first — specific plan)
  • 5.If I don't set an alarm, I oversleep. (zero — personal habit)