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Complete the sentences with the correct tense of the verbs in brackets (zero or first conditional)
1. My cat feels very happy if he… (see) me.
2. You get fat if you… (not exercise)
3. If she arrives early, we… (go) to the cinema.
4. If I… (need) you, I will call you.
5. If you study hard, you… (pass) the exam.