Fill in the gaps in the following sentences using the First Conditional.

1. If you ________ (not/exercise) and eat healthily, you ________ (put) on weight.
2. If we ________ (go) to the cinema, we ________ (buy) some popcorn.
3. If he ________ (go) to the gym, he ________ (get) quite muscular.
4. If you ________ (not/dress) warmly, you ________ (catch) a cold.
5. She ________ (feel) sick if she ________ (eat) too much chocolate.
6. If you ________ (stretch) your arms and legs after exercise, you ________ (feel) much better!
7. You ________ (get) stomachache if you ________ (eat) too much fruit.
8. If we ________ (walk) there, it ________ (take) us about twenty minutes.
9. If I __________________ (go) out tonight, I __________________ (go) to the cinema.
10. If you __________________ (get) back late, I __________________ (be) angry.
11. If we __________________ (not / see) each other tomorrow, we__________________ (see) each other next week.
12. If he __________________ (come), I __________________ (be) surprised.

13. If we __________________ (wait) here, we __________________ (be) late.

14. If we __________________ (go) on holiday this summer, we __________________ (go) to Spain.
15. If the weather __________________ (not / improve), we __________________ (not / have) a picnic.
16. If I __________________ (not / go) to bed early, I __________________ (be) tired tomorrow.
17. If we __________________ (eat) all this cake, we __________________(feel) sick.

18. If you __________________ (not / want) to go out, I __________________ (cook) dinner at home. I __________________ (come) early if you __________________ (want).

19. They __________________ (go) to the party if they __________________(be) invited.

20. She __________________ (stay) in London if she __________________ (get) a job.