Match each type of conditional clause (first column) to the sentence that correctly exemplifies it (second column).

First column ? Conditional type

1. Zero Conditional

2. First Conditional

3. Second Conditional

4. Third Conditional

Second column ? Sentences

(_) If water reaches 100°C, it boils.

(_) If she had studied harder, she would have passed the exam.

(_) If he studies regularly, he will improve his fluency.

(_) If I were more confident, I would speak English more often.

Choose the correct sequence: